Corrugated Cardboard is probably the least expensive material for prototyping. This is plain old corrugated cardboard. Universal, Epilog, Glowforge, Boss, Trotec, Dremel, Orion, FSL, Muse, Full Spectrum. Laser cutting is no problem. Pack of 12.
Golden State Art, 50 pack 9x12 Corrugated Cardboard
PARTNERS BRAND 20 x 12 x 3 Corrugated Cardboard Boxes
INCLUDES: Package includes 25 boxes per bundle. Boxes ship flat to save on storage, space and shipping. Corrugated boxes are reusable and recyclable.
Choice Shipping Supplies 12 x 12 x 13 Corrugated Cardboard Boxes, Kraft, Pack of 25, for Shipping, Packing and Moving, by Choice Shipping Supplies
Top 10 shipping box manufacturers in Australia
Golden State Art, 50 pack 9x12 Corrugated Cardboard
Corrugated box manufacturing hi-res stock photography and images
36 Corrugated Cardboard Sheets 12 x 12 Inches Brown
2 Pack 12 Feet x 35 Inch Corrugated Cardboard Roll
INCLUDES: Package includes 25 boxes per bundle. Boxes ship flat to save on storage, space and shipping. Corrugated boxes are reusable and recyclable.
Choice Shipping Supplies 12 x 12 x 13 Corrugated Cardboard Boxes, Kraft, Pack of 25, for Shipping, Packing and Moving, by Choice Shipping Supplies