Amazon.com: Baltic Birch Plywood, 6 mm 1/4 x 12 x 12 Inch Craft Wood, Box of 25 B/BB Grade Baltic Birch Sheets, Perfect for Laser, CNC Cutting and Wood Burning, by Woodpeckers :
Baltic Birch Plywood Sheets for Laser Cutting and Engraving (3 - 18 mm) – MakerStock
Laser Plywood Blank (PREORDER!) **MOVED TO LASERPLYWOOD.NET** - Omni Gaming