Foam Letters (A-Z) & Numbers (0-9) – Encore Kids Consignment
Magnetic Foam Lowercase Letters
Foam Alphabet Letter Stickers, 3/4-Inch, 189-Piece - Walmart.com
4" Foam Alphabet Letters & Numbers 36 piece Bathtub Fun Stick Toy Set 12M+ | eBay
Amazon.com: Horizon Group USA 1000+ Adhesive Foam Alphabet Stickers, Foam Letter Stickers, 7 Colors, 2 Fonts, 2mm, Foam Sticker Arts and Crafts for Kids, Classroom Activity, Art Class, Back to School Supplies :
Foam Letters, Self-adhesive, 2 Inches Fun Foam Die Cut Alphabet Lowercase Letters for Kids, Crafting & School Projects - Etsy Israel