A little adventure in the mailbox every month.
(First delivery - September 2026)
Most mail subscriptions are about the excitement of receiving something special.
The Heartpost Letter Club is about what happens next.
Each month, Pip delivers a Happy Mail Bundle filled with a brand-new adventure, creative surprises, and everything your child needs to write two real letters of their own. Add postage stamps and an expanded Adventure Guide when you subscribe, so it's set up exactly how you want it.
Because the magic doesn't end when they open the mailbox. It continues when they sit down to create, connect, and send a little love to someone they care about.
New to the club? Meet Pip and see how the Heartpost Letter Club works →
What's inside every monthly Happy Mail Bundle
Every delivery brings a new chapter from Pip's world, with everything needed to explore, create, and send real snail mail.
✉️ An original illustrated story
A brand-new adventure that invites children into Pip's world each month.
💌 A personalized letter from Pip
Written just for your child, including a mission to complete and a special keepsake Pip collected along the way.
🎨 A creative activity
A hands-on activity like a coloring page, puzzle, craft, or challenge inspired by the month's adventure.
⭐ A themed sticker sheet
Perfect for decorating letters, journals, and creative projects.
📮 Letter-writing supplies
A themed set of stationery and envelopes so your child can send two real letters of their own. Add postage stamps at checkout if you'd like us to include them.
🗺️ A collectible card
A new character, location, or special object from Pip's world to discover and collect.
Take a closer look at everything inside a monthly Happy Mail Bundle →
Choose your bundle
Every Happy Mail Bundle includes the story, Pip's letter, sticker sheet, collectible card, and letter-writing supplies above. At checkout, customize it with:
Bundle Type
• Bundle Only — the classic monthly bundle described above.
• Bundle + Adventure Guide — everything in the classic bundle, plus an expanded Adventure Guide inspired by that month's story. Each guide walks families through a simple 5-step framework (Read Together, Explore, Create, Connect, Share) with age-tiered variations for ages 4–6, 7–10, and 11+, so it works as a quick 15-minute activity or a deeper 45-minute homeschool enrichment lesson. Loved by homeschool families looking for a literature-based unit, and just as welcome for any family who wants a deeper dive into the month's adventure.
Postage Stamps
• Without Postage Stamps — bring your own stamps to mail the included letters.
• With 2 Forever Postage Stamps per child (+$2/child) — we include 2 Forever Stamps so the letters are ready to mail right away!
Number of Children
Letter writing is even more fun when you have a sibling to share the adventure with! If more than one child in your family wants to join in, you can add additional letter writers to the same monthly delivery.
- 1 child — Includes everything described above for one letter writer.
- 2, 3, or 4 children — +$5 per additional child. Each child gets their own stationery, envelopes, activity, stickers, and wax seal, all tucked into the same monthly envelope. The story chapter, Pip’s letter, monthly keepsake, and collectible card are shared — giving your family a growing collection to enjoy and follow together throughout Pip’s journey. One Adventure Guide is included for the whole family, too.
How it works
Subscribe once, and a new Happy Mail Bundle arrives every month.
Shipping is always included, so the price you see is the price you pay. Monthly sign-ups are open all month, and deliveries ship by the 15th of the following month.
You can pause, skip, or cancel anytime from your account.
Mailing tip: Our wax seal stickers are thin and flexible, and letters sealed with them almost always mail just fine with a regular stamp. Once in a while, the post office may ask for a little extra postage for a sealed letter. If you want to be extra careful, add an extra stamp or ask for hand-canceling at the counter. Or just use them for journaling or hand-delivered letters!
Shipping is included!
A gift that keeps arriving
The kind of gift children look forward to long after the wrapping paper is gone.
Loved by grandparents, aunts, and parents who want to give something more meaningful than another toy, the Heartpost Letter Club delivers twelve little moments of creativity, imagination, and connection throughout the year.
A reason to slow down.
A reason to create.
A reason to send a letter.
Best for ages 5–12
Younger children may enjoy the club with grown-up help, and older letter lovers are always welcome.
Made by hand in California.