3/4 in. x 1.25 ft. x 4 ft. R-2.65 Polystyrene Panel Insulation Sheathing (6-Pack) 150705 - The Home Depot
Amazon.com: AMZQNART Craft Foam Blocks, 2 in Thick 17x11" EPS Polystyrene Rectangle Foam Blocks Packs of 3 Pcs for Art Sculpting, Sculpture, Modeling, School and Home DIY. : Arts, Crafts & Sewing
Styrofoam | Houston Foam Styrofoam White 4x8x4" | Reece Supply
R-Tech 1 1/2 in x 48 in. x 8 ft. R-5.78 EPS Rigid Foam Board Insulation 320817 - The Home Depot
6 Pack White Foam Sheets 1 Inch Thick, Polystyrene Rectangle Blocks for DIY Crafts, Art Supplies, Packing (12x4 Inches) - Walmart.com
Foamboard - White/White - 4' x 8' x 1" - Set Shop NYC
Amazon.com : AKOLAFE 30 Pack 10x8 Inch Foam Boards, 5 mm Thick Foam Core Board 1/5 Inch White Foam Sheet, White Polystyrene Poster Board Signboard for Presentations, School, Office & Art Projects : Office Products
20" x 30" Foam Board, 1/2" Thick | Michaels
Styrofoam Sheets – Pathe Shipping
Polystyrene Sheet, White - 3.18mm Thick (1/8 Inch) x 25cm Square - Radiation Products Design, Inc.
Styrofoam Sheets (12 inches X 12 inches X 1/2 inch Thick) - 15-Pack | eBay
Amazon.com : 16 Pack Foam Board 11.7x16.5 Inch, CBTONE 3/16 Inch Thick White Polystyrene Foam Sheet for Photo Framing, Art Display and Handicraft : Office Products
Amazon.com: AMZQNART Craft Foam Blocks, 2 in Thick 17x11" EPS Polystyrene Rectangle Foam Blocks Packs of 3 Pcs for Art Sculpting, Sculpture, Modeling, School and Home DIY. : Arts, Crafts & Sewing
Thick Styrofoam Board High Density XPS Extruded Polystyrene Foam Blocks Sheets - China XPS, Polystyrene Sandwich Panel | Made-in-China.com