Foamcore 3/16" Black on Black 24X36 - Du-All Art & Drafting Supply
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
Amazon.com : Excelsis Design 15 Pack Foam Board 24x36 Inches | Black Foam Board 3/16 Inch Thick Black Core Mat | Backing Board for Presentations, Signboards, Arts, Display and Crafts with Double-Sided
Amazon.com : AKOLAFE 30 Pack 10x8 Inch Foam Boards, 5 mm Thick Foam Core Board 1/5 Inch Black Foam Sheet, Black Polystyrene Poster Board Signboard for Presentations, School, Office & Art Projects : Office Products