HeartpostStudioShop

United States

297
 Sales

5.0 (23)

8 months
on Etsy

5.0 (23)

297
 sales

8 months
on Etsy

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297
 Sales

5.0 (23)

8 months
on Etsy

5.0 (23)

297
 sales

8 months
on Etsy

All 11
Little Letter Boxes 5
Letter Box Add-ons 2
Stationery Sets 4

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297 Sales

15 Admirers

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Announcement

Last updated on May 27, 2026

⭐Featured in Style Magazine - Editor's pick for "Retro Revival"⭐

💌Summer Camp Kits just launched! And for the month of May, every purchase of a Little Letter Box sponsors a mini kit for Camp Okizu - a camp for children with cancer and their siblings 💌

Shop personalized stationery sets, complete letter writing kits, address labels, stamps & more — everything a little writer needs to slow down and send some love.

✏️ Stationery sets personalized with your child’s name

✉️ Perfect for pen pals, summer camp, grandparent gifts & birthdays

📦 Buy 2+ items and save 15%

⭐ 5-star rated by happy families

Questions? Send me a message — I’d love to help you find the perfect kit. 💛

Contact shop owner

Sarah Acord

Reviews

5.0 (23)

Average item review

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience.

Renee on Sep 9, 2026

5 out of 5 stars

Very happy with this product.

Kids Letter Writing Kit – Pen Pal Set with Themed Stationery, Personalized Address Labels, Stickers, Wax Seals (Zipper Case)

Kids Letter Writing Kit – Pen Pal Set with Themed Stationery, Personalized Address Labels, Stickers, Wax Seals (Zipper Case)
HANNAH on Sep 3, 2026

5 out of 5 stars

Loved these so much when they arrived I bought two more. We are moving to another state and buying these for my 8yo daughter’s friends is the best leaving gift to help them keep in touch. Grateful to this seller for producing such a special and thoughtful item!

Sarah responded on Sep 3, 2026

Thank you so much for the kind words! I put so much love into each of these, and I so enjoy hearing when the kids love them too 🥰

Kids Letter Writing Kit – Pen Pal Set with Themed Stationery, Personalized Address Labels, Stickers, Wax Seals (Zipper Case)

Kids Letter Writing Kit – Pen Pal Set with Themed Stationery, Personalized Address Labels, Stickers, Wax Seals (Zipper Case)
Carly on Sep 14, 2026

5 out of 5 stars

My 6-year-old daughter is pen pals with her Kindergarten teacher from last year - she LOVES to send and receive cards in the mail. Teaching her about how to address an envelope, these stickers make her life so much easier. and they are SO CUTE.

Personalized Kids Return Address Labels – Unicorn, Dinosaur, Animal Themes

Personalized Kids Return Address Labels – Unicorn, Dinosaur, Animal Themes
Chris on Sep 10, 2026

5 out of 5 stars

My Granddaughter's love these so much! They write so many notes on them and the quality is so good!

Personalized Magical Creatures Kids Stationery Set | Unicorn Fairy Mermaid Dragon Paper and Stickers

Personalized Magical Creatures Kids Stationery Set | Unicorn Fairy Mermaid Dragon Paper and Stickers
Chris on Sep 10, 2026

5 out of 5 stars

My Granddaughter's love these so much! They write so many notes on them and the quality is so good!

Personalized Magical Creatures Kids Stationery Set | Unicorn Fairy Mermaid Dragon Paper and Stickers

Personalized Magical Creatures Kids Stationery Set | Unicorn Fairy Mermaid Dragon Paper and Stickers
Chris on Sep 10, 2026

5 out of 5 stars

My Granddaughter's love these so much! They write so many notes on them and the quality is so good!

Personalized Magical Creatures Kids Stationery Set | Unicorn Fairy Mermaid Dragon Paper and Stickers

Personalized Magical Creatures Kids Stationery Set | Unicorn Fairy Mermaid Dragon Paper and Stickers
Chris on Sep 10, 2026

5 out of 5 stars

My Granddaughter's love these so much! They write so many notes on them and the quality is so good!

Personalized Magical Creatures Kids Stationery Set | Unicorn Fairy Mermaid Dragon Paper and Stickers

Personalized Magical Creatures Kids Stationery Set | Unicorn Fairy Mermaid Dragon Paper and Stickers
Sandy on Jul 18, 2026

5 out of 5 stars

My niece loved it. She started writing letters right away

Kids Letter Writing Kit – Pen Pal Set with Themed Stationery, Personalized Address Labels, Stickers, Wax Seals (Zipper Case)

Kids Letter Writing Kit – Pen Pal Set with Themed Stationery, Personalized Address Labels, Stickers, Wax Seals (Zipper Case)
Esther on Jul 12, 2026

5 out of 5 stars

Perfect gift! Would buy again.

Kids Letter Writing Kit – Personalized Stationery, Stickers, Envelopes, Hard Zipper Case, snail mail letters

Kids Letter Writing Kit – Personalized Stationery, Stickers, Envelopes, Hard Zipper Case, snail mail letters
Sue on Jul 10, 2026

5 out of 5 stars

Very simple, great for writing my penpal who is 5.

Personalized Kids Stationery Set – Classic Pink, Writing Paper & Stickers, Happy Mail for Children

Personalized Kids Stationery Set – Classic Pink, Writing Paper & Stickers, Happy Mail for Children

About HeartpostStudioShop

Heartpost Studio | Kid Letter Writing Kits & Stationery

Sales 297

On Etsy since 2026

Heartpost Studio | Kid Letter Writing Kits & Stationery

A Little Letter goes a long way…

⭐Featured in Style Magazine - Editor's pick for "Retro Revival" ⭐

Hi, I’m Sarah, the heart behind A Little Letter. I created these snail mail kits to help children slow down, get creative, and connect in a meaningful way - away from screens and with a whole lot of love.

Each box is thoughtfully packed in California and designed to make writing letters feel fun, special, and doable for little hands. Whether it’s a note to Grandma, a thank-you to a friend, or a letter just because, I believe that a little letter goes a long way.

Thank you for supporting a small business and helping keep the joy of handwritten mail alive!

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Shop policies

Last updated on Jan 12, 2026

Shipping

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Customs and import taxes

For US deliveries, Etsy policy requires that import duties and fees are included in the checkout price. Non-US buyers may need to pay these fees upon delivery. You can message me to confirm how these fees will be paid for your order. I'm not responsible for any customs-related delays.

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Returns & exchanges

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Cancellations

Cancellations: accepted

Request a cancellation: within 24 hours of purchase

HeartpostStudioShop

Featured items

Kids Letter Writing Kit – Pen Pal Set with Themed Stationery, Personalized Address Labels, Stickers, Wax Seals (Zipper Case)

Summer Camp Letter Writing Kit – Personalized Stationery, Address Labels, Pen Pal Set

Grandparent/Grandchild Gift – Kids Letter Writing Kit, Pen Pal, Snail Mail, Stationery Set

Personalized Kids Return Address Labels – Unicorn, Dinosaur, Animal Themes

All items

Kids Letter Writing Kit – Pen Pal Set with Themed Stationery, Personalized Address Labels, Stickers, Wax Seals (Zipper Case)

Summer Camp Letter Writing Kit – Personalized Stationery, Address Labels, Pen Pal Set

Personalized Magical Creatures Kids Stationery Set | Unicorn Fairy Mermaid Dragon Paper and Stickers

Grandparent/Grandchild Gift – Kids Letter Writing Kit, Pen Pal, Snail Mail, Stationery Set

Personalized Kids Stationery Set – Classic Pink, Writing Paper & Stickers, Happy Mail for Children

Kids Pen Pal Kit – Homeschool Writing Activity, Letter Writing, Snail Mail Stationery Set

Personalized Dinosaur Kids Stationery Set | Dino Theme Paper, Stickers, Letter Writing Kit

Personalized Animal Stationery Set for Kids | Elephant Fox Highland Cow Koala Writing Paper , Stickers

Kids Letter Writing Kit – Travel Stationery, Stickers, Pen, Zipper Box (Screen-Free Activity)

Personalized Kids Return Address Labels – Unicorn, Dinosaur, Animal Themes

Mini Address Book - Add-on for Kids Stationery Letter Writing Kit

Announcement

Reviews

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About HeartpostStudioShop

Shop policies

Shipping

Customs and import taxes

Payment options

Returns & exchanges

Cancellations