$68.99 Styrofoam Sheets (1.2m*1.2m) i.e. 4ft*4ft with Thickness 1/2â³-4â³ â Kenworks Ventures Company Limited
1/2Thick Black Sponge Neoprene with Adhesive Foam Rubber Sheet 12Inch x 54Inch | eBay
Amazon.com: Styrofoam Sheets (6 X 8 X 1/2 Inches) - White (Lot of 80): Arts, Crafts & Sewing
