Baltic Birch Plywood Sheets for Laser Cutting and Engraving (3 - 18 mm) – MakerStock
Thin Alder Wood For Laser Engraving/Cutting - What is the best wood for laser engraving?
Amazon.com: Baltic Birch Plywood, 3 mm 1/8 x 12 x 24 Inch Craft Wood, Box of 12 B/BB Grade Baltic Birch Sheets, Perfect for Laser, CNC Cutting and Wood Burning, by Woodpeckers :