Written by Acorn Sales Company, manufacturing stamps and seals since 1964 · Reviewed by Holly R, VP of Sales and Marketing at Acorn Sales, against the Acorn Sales teacher, classroom, grading, reward and school stamp range (3,517 published SKUs) on 21 September 2026 · Updated 21 September 2026
A teacher stamp at Acorn starts at $12.95, which buys either a Shiny Duo hand stamp carrying a classroom message or a Slim pre inked stock stamp carrying a homework message. The same themed design moves up a short ladder as the body changes: $15.95 for a wood handle or a Trodat self inking body, and $16.95 for a Slim compact pre inked or a PSI pre inked body. Above that sit large self inking message stamps at $21.95 and personalized library, address and craft stamps from $19.95 to $32.95. Nearly all of the themed range comes in two impression sizes, Small 1/2″ x 1-1/2″ or Large 3/4″ x 2-1/4″, and the inked bodies are rated between 10,000 and 50,000 impressions before re-inking. Acorn publishes 3,517 products across this cluster, from $10.95 to $32.95, with a median of $16.95.What these are for
This is the paper side of teaching: the marks a teacher makes hundreds of times a week and does not want to write by hand. Four jobs dominate. The first is grading and marking, where a stamp replaces the same written comment on stack after stack of work, with messages like Show Your Steps, Check Your Spelling and Needs A Bit More Effort. The second is feedback phrasing, where the point is tone as much as content, and the catalog leans on illustrated encouragement such as Progress Over Perfection, Finding Your Voice and Peaceful Problem Solver. The third is reward and incentive, the stamps that go on a chart, a folder or a returned paper to mark something a student did well. The fourth is administration: homework status, name reminders, parent communication and property marking, which is what the older stock message range at $12.95, $13.95 and $21.95 was built for. Around those four sits a smaller trade in teacher gift and craft stamps from $19.95 to $32.95.
The ranges we stock
Grading and marking stamps
These are the stamps that carry a correction or an instruction rather than praise. In the themed range the marking families are titled Teacher Marking, Teacher Grading and Cute Grading, and the messages run to Show Your Steps, Check Your Spelling, Show Thinking Please, Needs A Bit More Effort, Crushing It But Erasure Needed and On The Write Track. Prices depend on the body, not the message: $12.95 in a Shiny Duo hand stamp, $15.95 in an ASC wood handle or a Trodat self inking body, and $16.95 in a Slim compact pre inked or a PSI pre inked body. The Teacher Marking Note-Taker PSI Pre-Inked Stamp at $16.95 is representative of the top of that group, listed with oil based ink, up to 15,000 impressions without a refill, five ink colors and a press the listing describes as whisper quiet. The Cute Grading On Write Track Wood Handle Stamp at $15.95 is the other end: a black wood handle with no internal moving parts and an ink pad bought separately. Every one of these carries a fixed message. Nothing in the grading range takes custom text.
Feedback phrase stamps
The feedback families are the largest part of the themed range, titled Classroom Feedback, Teacher Feedback, Motivational Teacher, Elementary Teacher and Student Work. The phrases are written to be read by a student rather than a parent: Progress Over Perfection, Proud Of Your Progress, Finding Your Voice, You Followed Through, Almost There Keep Trying, Hanging In There and Peaceful Problem Solver. Most carry an illustration. The Motivational Teacher Peaceful Problem Solver Self-Inking Stamp at $15.95, for example, sets the phrase in rounded lettering with a dove in the word Problem and a puzzle piece below, and the listing offers 11 ink colors, up to 10,000 impressions, a re-inkable and replaceable pad, and a case in Light Pink, Purple, Midnight Black or Fuchsia. A feedback phrase costs $12.95 as a hand stamp and $16.95 as a pre inked stamp, and the wording and the artwork are identical across those bodies.
Reward and incentive stamps
The reward families are titled Classroom Reward, Teacher Reward and Positive Feedback, and they are the stamps meant to land on a behavior chart, a reward card or the top of a returned paper. Examples in the sample include Space, Infinite Potential, Smart Cookie, Be-Leaf In You, Muscle-Tastic Job, Teamwork, Transition Champ and Organized And Prepared. The Classroom Reward Space Hand Stamp at $12.95 is the cheapest way into this group and uses the Shiny Duo body: a modular handle with a protective dust cover, a laser etched die that takes water based, permanent or industrial inks, and an ink pad sold separately. The same reward artwork in a Trodat self inking body is $15.95 and arrives with its own pad and a stated 10,000 impressions. Size matters more here than elsewhere. The listings put Large at 3/4″ x 2-1/4″ when the mark has to read across a desk and Small at 1/2″ x 1-1/2″ when it has to fit a margin.
Homework, name and classroom admin stamps
This is the older stock message range, and it is organized by message rather than by artwork. Fourteen messages appear in the Slim pre inked body at $12.95: Blue Ribbon, Improving, Please Correct, Correct And Hand Back To Teacher, Please Finish At Home And Return To Teacher, Homework Complete, Super Homework, Incomplete Homework, Homework Late No Credit, No Homework Turned In, Meet With Teacher, School Meeting Tonight, Lunch Money Due and School Property. Nine of the same messages appear in a Trodat self inking body at $13.95, and ten appear in a large Trodat self inking body at $21.95. Name reminders sit partly in this group and partly in the themed range: Elementary Teacher Add Name Get Credit Hand Stamp at $12.95, Student Work Magical Needs Name Self-Inking Stamp at $15.95, and Classroom Feedback Wanted Your Name PSI Pre-Inked Stamp at $16.95. School Property at $12.95, $13.95 and $21.95 is the one used on textbooks and equipment rather than on student work.
The mechanism ladder and what each step costs
Five bodies carry the themed classroom designs, and the price gap between the cheapest and the dearest is four dollars. A Shiny Duo hand stamp is $12.95: a modular handle with a snap on dust cover, an antimicrobial or anti-fungal treated grip depending on the listing, a laser etched die, and no ink at all, because the pad is bought separately. An ASC wood handle stamp is $15.95, a traditional black wooden handle the listings describe as having no internal moving parts, again with the pad bought separately. A Trodat self inking stamp is $15.95 and includes its pad, rated at up to 10,000 impressions, re-inkable and replaceable, in 11 ink colors. A Slim compact pre inked stamp is $16.95 with oil based ink built into the die, no pad at all and up to 15,000 impressions in five colors. A PSI pre inked stamp is also $16.95 with the same oil based construction, the same 15,000 figure and five colors. In the older stock range the ladder is shorter: Slim pre inked at $12.95, Trodat self inking at $13.95, and the large Trodat self inking at $21.95.
Teacher craft, gift and personalized stamps
This part of the cluster is bought as a gift or used away from grading. Craft stamps are square, listed at 1-5/8″, and run $19.95 in a Shiny Duo hand body, $24.95 in an ASC wood handle body, $26.95 in a Trodat self inking body and $32.95 in a Slim pre inked body. The Slim Pre-Inked Cherished Classroom Mentor Card Stamp at $32.95 is the dearest item in the sample, listed at up to 15,000 impressions in red, navy, black, green and purple. Personalized stamps are the other half. The Bitmoji Teacher Address Duo Stamp at $19.95 prints a teacher address at 7/8″ x 2-1/4″, and the Personalized Bull Terrier Teacher Library Ex Libris Pre-Inked Stamp at $26.95 takes a name or custom text for classroom books at the same size, with five ink colors and up to 15,000 impressions. Custom holiday greeting stamps are $21.95 in a hand body and $26.95 in a self inking body.
Sizes and dimensions
Three size patterns cover the whole cluster. The themed classroom range, which is almost all of the grading, feedback and reward stamps, is offered in exactly two sizes on every listing: Small 1/2″ x 1-1/2″ and Large 3/4″ x 2-1/4″. That holds across the $12.95 hand stamps, the $15.95 wood handle and self inking bodies and the $16.95 pre inked bodies, so changing mechanism does not change the impression. The older stock message range uses its own sizes: the Slim pre inked stamps at $12.95 are described in the body copy as 5/8″ x 1-5/8″, the Trodat self inking stamps at $13.95 give an impression area of 5/8″ x 1-5/8″, and the large Trodat self inking stamps at $21.95 are 7/8″ tall by 2-1/4″ wide. Worth knowing before you order: the $12.95 Slim listings contradict themselves, stating 5/8″ x 1-5/8″ in the description and an approximate impression of 1/2″ by 1-3/4″ in the highlights. Confirm with Acorn if the exact dimension matters. The third pattern is the craft and designer group: square craft stamps at 1-5/8″, personalized name and address stamps at 7/8″ x 2-1/4″, and one personalized pre inked stamp at 1-5/16″ x 2-3/8″.
How many impressions you get
Impression counts are published on every body that carries its own ink, and on none of the bodies that do not. The highest figure in the cluster belongs to the cheapest stamps: the Slim pre inked stock message stamps at $12.95 state up to 50,000 impressions before re-inking is needed. Trodat self inking stamps state up to 10,000, both in the $13.95 stock message range and in the $15.95 themed range, and the same 10,000 figure appears on the $26.95 self inking craft and holiday stamps. Slim compact pre inked stamps at $16.95 and PSI pre inked stamps at $16.95 both state up to 15,000 impressions without a refill, as do the $26.95 personalized pre inked stamps and the $32.95 Slim pre inked craft stamps. The large Trodat self inking stamps at $21.95 publish no count at all; their listings say only that the self contained ink pad is replaceable or re-inkable. The hand stamps publish none either, for a clear reason: the Shiny Duo bodies at $12.95, $19.95 and $21.95 and the ASC wood handle bodies at $15.95 and $24.95 hold no ink, so how long they last is a question about the pad.
Ink and colors
Ink color choice divides on mechanism. Trodat self inking bodies are the widest, offered in 11 ink colors at $13.95, $15.95, $21.95 and $26.95. The pre inked bodies are offered in five: the Slim stamps name theirs as red, blue, green, purple and black, the $32.95 Slim craft stamps name red, navy, black, green and purple, and the PSI stamps at $16.95 say five ink colors without naming them, so ask before ordering if a particular color matters. The pre inked ink is described as oil based, long lasting and smudge resistant on the Slim and PSI listings. The Trodat pads are re-inkable and replaceable. Hand stamps carry no ink and take whatever pad you pair them with; the listings describe the dies as working with water based, permanent and in some cases industrial inks, and one ASC wood handle listing adds that with specialty or industrial ink the die will mark fabric and some non porous surfaces. On safety, the catalog is silent, and that silence should be respected. No listing in this extract describes any ink as non toxic, as safe on skin, or as washable off a child. The single mention of washability is on the $19.95 Duo Hand Teachers Nurture Lifelong Learners Card Making Rubber Stamp, which says only that the rubber die is compatible with multiple ink types so you can stamp archival or washable designs, a statement about the ink you supply and the paper it lands on rather than a claim about students. If you intend to stamp hands, check the ink manufacturer rather than relying on anything here.
What you can customize
Most of this cluster is not customizable. The grading, feedback, reward and homework stamps carry fixed messages and fixed artwork, and what you choose is the mechanism, the impression size, the ink color and, on the Trodat self inking themed bodies, a case color from Light Pink, Purple, Midnight Black and Fuchsia. Personalization lives in the designer group. The Bitmoji Teacher Address Duo Stamp at $19.95 sets a teacher address in script and sans serif type beside an illustration. The Personalized Bull Terrier Teacher Library Ex Libris Pre-Inked Stamp at $26.95 takes a name or custom text so classroom library books are marked as belonging to a room. The Customizable Handwritten Inspirational Quote Square Rubber Stamp at $21.95 takes a quote or message of your own on a 1-5/8″ square die. The custom made holiday greeting stamps are $21.95 in a Shiny Duo hand body and $26.95 in a Trodat self inking body. Beyond those, the listings do not publish an order form, a character limit or a font list, so if you want a classroom name, a room number or a school crest on a die, describe it through contact us and ask what the artwork requirements are rather than assuming a stock listing will take it.
The same classroom design is sold at three prices under three different names
Acorn builds the themed classroom designs once and drops them into several bodies, and the product title changes with the body. The Graph Genius design is sold as the Classroom Feedback Graph Genius Hand Stamp at $12.95, the Teacher Marking Graph Genius Wood Handle Stamp at $15.95 and the Motivational Teacher Graph Genius PSI Pre-Inked Stamp at $16.95. The Scientifically Impressive design appears as a Classroom Reward at $15.95 in a self inking body, a Teacher Marking at $16.95 in a Slim compact pre inked body and a Teacher Grading at $16.95 in a PSI body. Whale Done, Show Your Steps, You Followed Through, Gopher It, Chameleon and Teacher Assisted all do the same thing.
Two practical consequences follow. First, searching by the family name at the front of the title will hide options from you, because the same artwork may be filed under Classroom Feedback in one body and Teacher Marking in another. Search the phrase on the stamp instead. Second, the price difference between those listings is entirely mechanism. At $12.95 you get a hand stamp and buy a pad; at $15.95 you get a self inking body with its pad and 10,000 impressions; at $16.95 you get a pre inked body with oil based ink and 15,000 impressions. The impression on the page is the same in all three, at the same Small or Large size. Decide how you want to hold it and how often you want to think about ink, then buy the cheapest body that matches.
Ordering, proofs and delivery
Order by the phrase on the stamp, the mechanism, the impression size and the ink color, because those are the four choices the listings actually expose. Impression size is Small 1/2″ x 1-1/2″ or Large 3/4″ x 2-1/4″ across the themed range, and the older stock messages come in one size per listing rather than as a choice. On the Trodat self inking themed stamps you also pick a case color. There is no minimum order in this range and nothing in these listings mentions a setup fee for a stock message. Acorn manufactures in Richmond, Virginia. What these listings do not publish is a production time: none states a lead time in business days, so if you are ordering for the first week of term, confirm the date through contact us before you rely on it. The same applies to bulk buying for a grade level team or a whole school, which is not priced on the page.
Care and longevity
Acorn warrants embossing seals for two years and rubber stamps for six months. Nothing in this teacher cluster contradicts that, because no listing in the extract states a warranty term of its own. One craft listing, the $24.95 Wood Handle Brave Hearted Teacher Handcraft Stamp, refers in its closing marketing copy to a lifetime quality guarantee; the house term for a rubber stamp is six months, and this cluster contains no embossing seals at all, so treat the six month term as the one that applies and ask through contact us if a stamp fails. Day to day care depends on the mechanism. Hand stamps and wood handle stamps have no working parts; wipe the die when you change ink color, particularly after a permanent or industrial ink, and store them under the dust cover the Shiny Duo bodies come with. Self inking stamps need their pad re-inked when the impression goes pale, which the Trodat listings say can be done in place. Pre inked Slim and PSI stamps are re-inked through the die from the top, at up to 50,000 impressions on the $12.95 stock stamps and up to 15,000 on the $16.95 ones.
Products in this range
Browse the full range: Teacher Craft Stamps, Teacher and Education Designer Stamps.
Related guides
- Self-Inking vs Pre-Inked vs Traditional Rubber Stamps
- Craft and Art Rubber Stamps: Card Making, Scrapbooking and Paper Craft
- Stamp Ink, Pads and Re-Inking: Which One Fits Your Stamp
- Date Stamps and Daters: Sizes, Bands and Prices
- Self-Inking, Pre-Inked and Traditional Rubber Stamps Compared
- Stamp Ink and Care: Complete Guide
Frequently asked questions
What does a teacher stamp cost?
From $12.95 to $32.95 in this cluster, with a median of $16.95 across 3,517 published products. $12.95 buys either a Shiny Duo hand stamp carrying a classroom message or a Slim pre inked stock stamp carrying a homework message. $13.95 buys a Trodat self inking stock message stamp. $15.95 buys a wood handle or a self inking themed stamp, $16.95 a pre inked one. $21.95 buys a large self inking message stamp, and the craft and personalized stamps run $19.95 to $32.95.
What size is the impression?
The themed grading, feedback and reward stamps come in two sizes, Small 1/2″ x 1-1/2″ and Large 3/4″ x 2-1/4″, and both sizes are offered on every mechanism from $12.95 to $16.95. The older stock message stamps are fixed: 5/8″ x 1-5/8″ at $12.95 and $13.95, and 7/8″ by 2-1/4″ on the large self inking stamps at $21.95. Craft stamps are 1-5/8″ square and the personalized address and library stamps are 7/8″ x 2-1/4″.
How many impressions do I get before re-inking?
It depends on the body. The Slim pre inked stock message stamps at $12.95 state up to 50,000. Pre inked stamps at $16.95, $26.95 and $32.95 state up to 15,000. Trodat self inking stamps state up to 10,000 at $13.95, $15.95 and $26.95. The large Trodat self inking stamps at $21.95 publish no figure, and hand stamps publish none because they hold no ink.
Is the ink safe for students, and can it be used on skin?
The catalog does not say, so neither will this page. No listing in this range describes its ink as non toxic, as skin safe or as washable off a child, and Acorn makes no such claim here. These are stamps for paper. The only washability reference in the range is on the $19.95 Duo Hand Teachers Nurture Lifelong Learners Card Making Rubber Stamp, which says the rubber die works with multiple ink types so you can stamp archival or washable designs, which is about ink and paper rather than about students. If you plan to stamp hands, check the ink manufacturer directly.
Which ink colors can I choose?
Trodat self inking stamps are offered in 11 ink colors at $13.95, $15.95, $21.95 and $26.95. Pre inked stamps are offered in five: the Slim listings name red, blue, green, purple and black, and the PSI listings at $16.95 say five without naming them. Hand stamps at $12.95 and wood handle stamps at $15.95 include no ink, so the pad you choose sets the color.
Should I buy a hand stamp, a self inking stamp or a pre inked stamp?
For grading stacks of work, a self inking or pre inked body is faster, because the ink travels with the stamp. A $15.95 Trodat self inking body gives 10,000 impressions and 11 ink colors. A $16.95 Slim or PSI pre inked body gives 15,000 impressions in five colors and no pad to lose. A $12.95 hand stamp is cheapest and most flexible, since any pad fits under it, but it needs a free hand for the pad.
Can I get a stamp with my own name or classroom on it?
Yes, but from the designer group rather than the grading range. The Bitmoji Teacher Address Duo Stamp at $19.95 carries a personalized address. The Personalized Bull Terrier Teacher Library Ex Libris Pre-Inked Stamp at $26.95 takes a name or custom text for classroom books. The Customizable Handwritten Inspirational Quote Square Rubber Stamp at $21.95 takes your own wording. The grading, feedback, reward and homework stamps are all fixed messages. For anything outside those listings, describe what you want through contact us.
What homework and classroom management messages are stocked?
Fourteen in the Slim pre inked body at $12.95: Blue Ribbon, Improving, Please Correct, Correct And Hand Back To Teacher, Please Finish At Home And Return To Teacher, Homework Complete, Super Homework, Incomplete Homework, Homework Late No Credit, No Homework Turned In, Meet With Teacher, School Meeting Tonight, Lunch Money Due and School Property. Nine of those also appear in a Trodat self inking body at $13.95, and ten in a large Trodat self inking body at $21.95.
Why is the same design listed under different names?
Because the title describes the body as much as the design. The Graph Genius artwork is a Classroom Feedback Hand Stamp at $12.95, a Teacher Marking Wood Handle Stamp at $15.95 and a Motivational Teacher PSI Pre-Inked Stamp at $16.95. Search by the phrase printed on the stamp rather than by the family name at the front of the title, or you will miss the mechanism you want.
What is the warranty on a teacher stamp?
Six months. Acorn warrants rubber stamps for six months and embossing seals for two years, and this cluster contains no embossing seals. No listing in this teacher range states a warranty term of its own, with one loose exception: the $24.95 Wood Handle Brave Hearted Teacher Handcraft Stamp mentions a lifetime quality guarantee in its marketing copy. The house term for a stamp is six months, so treat that as the term and raise a failure through contact us.
How quickly will my order arrive?
The catalog does not publish a lead time on these products. No teacher listing in this range states a production time in business days or a transit window, and this page will not invent one. Acorn manufactures in Richmond, Virginia. If you are ordering against a date, the first day of term or a parents evening, confirm the timing through contact us before you order.
Which stamp is best for marking school property?
School Property is a stock message, sold at $12.95 in a Slim pre inked body at 5/8″ x 1-5/8″, at $13.95 in a Trodat self inking body at the same size, and at $21.95 in a large Trodat self inking body at 7/8″ by 2-1/4″. For classroom library books, the $26.95 Personalized Bull Terrier Teacher Library Ex Libris Pre-Inked Stamp puts a name on the book instead of a generic mark.
Do any of these stamps work on fabric or other surfaces?
The catalog only makes that claim for the hand stamp bodies, and only because they take any ink you give them. One ASC wood handle listing at $15.95 says the laser engraved rubber die can be paired with specialty or industrial ink to stamp fabric and some non porous materials, and the $24.95 wood handle craft stamps say the same. The self inking and pre inked bodies carry their own ink and the listings describe them for paper. No listing in this range states that any ink is permanent on fabric after washing.
What do the craft and gift stamps cost?
Square craft stamps at 1-5/8″ run $19.95 in a Shiny Duo hand body, $24.95 in an ASC wood handle body, $26.95 in a Trodat self inking body and $32.95 in a Slim pre inked body, the top of this cluster. The $26.95 stamps state 11 ink colors and up to 10,000 impressions; the $32.95 ones state five colors and up to 15,000. The two hand bodies include no pad.
