An example for a 3D-perspective puzzle that looks like a 3 from one side and a D from the other with our logo cut out from the top - these are relatively easy to make so we can make custom ones too
with a few more tricks it's basically the simplified process of photogrametry - a simple and limited but useful 3d-scanning process where you take photos of an object from various angles and then cut out those crosssections in the correct direction from a base shape