For example, say you own a 3D printer and you just came up with an ... tutorial from [Willy Nicholas] on how to quickly make a cardboard prototype. Now, obviously this won’t work on all designs.

Panels like Art3d's Decorative 3D Wall Panels in Diamond ... Then take your detail craft knife and cut over the traced lines, piercing completely through the cardboard. Pop out all the triangles ...

To start, remove all tape, coatings, staples, and anything else non-soluble from the cardboard. Cut it into bite-sized pieces your blender will enjoy, and add water and PVA glue or rice paste.