30 x 30cms XPS Styrofoam Polystyrene Sheets for Hobby Craft Diorama DI – Hobby Foam Supplies
Amazon.com: 80 Pack EVA Foam Handicraft Sheets (6 x 9 Inches) Colorful Crafting Sponge Paper for Classroom Art and Craft DIY Projects | Thick and Soft Paper,16 Colors : Arts, Crafts & Sewing
White Ghostline Foam Board - 11" x 14" | Hobby Lobby | 213769