Collection: Kids' Cards & Writing Tools
A note in a lunchbox gets read at a table full of other children, which is the whole appeal of a scratch off one.
Inklings Paperie makes the scratch off lunchbox notes. You write a message in the marked area, cover it with the sticker provided, and it gets scratched off at lunch. A set runs 24 notes with a to and from on the back. They also make secret decoder notes, gold heart mini pencils, and paint with water Valentine kits in monster and unicorn designs. TWEE makes the handmade sidewalk chalk sets, shaped as bunnies and unicorns.
Most of this is small enough to work as a party favor or a stocking filler. It is worth buying at the start of a school year rather than partway through one.