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 :
Materials for Laser Cutting Plywood Acrylic
Rectangle Laser Cut Wood Multiple Thickness Sizes up to 60 - Etsy Australia
Making Thin Wood Boards for Laser Cutting : 7 Steps (with Pictures) - Instructables