Foam Core Backing Board 3/16" Black 12x24- 5 Pack. Many Sizes Available. Acid Free Buffered Craft Poster Board for Signs, Presentations, School, Office and Art Projects - Walmart.com
Acid-Free Foam Board | BLICK Art Materials
What is Foam Board "Tips and Tools" - YouTube
3/16" Pre-Cut Foam Board | Order 3/16" Custom Cut Foam Board in Multiple Sizes at Foamboards
Amazon.com : Union Premium Black Foam Board 24 x 36 x3/16" 10-Pack : Matte Finish High-Density Professional Use, Perfect for Presentations, Signboards, Arts and Crafts, Framing, Display (Black, 24 x 36 x
R-Tech 1 1/2 in x 48 in. x 8 ft. R-5.78 EPS Rigid Foam Board Insulation 320817 - The Home Depot
5 Sheets White Foam Boards--Sand Table Building Model Materials 2mm / 3mm Thick Foam PVC Sheet Poster Board Mount Board for Mounting, Crafts, Modelling, Art, Display, School Projects - Walmart.com