Pacon Plastic Poster Board, 22 x 28 Inches, Lime Green, Pack of 25 - Walmart .com
Dixon Ticonderoga 14 x 22 in. Poster Board W-upc Labels, White - 10 Point 100 Count - Walmart.com
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
SEUNMUK 24 Pack 13 x 17 Inch Blue Waterproof Corrugated Blank Plastic Sheet Lightweight Poster Board - Walmart.com