This is a cool product to develop complicated folded (bending only) shapes in sheet materials.
https://www.foldstar.net/
One can quickly form an intuition on how complex shapes can be formed without shrinking or stretching.
I tried making some of these with a bead roller, but my HF has too small of a throat. Any other ideas on how to form these shapes? The video shows complicated roll forming, but I am looking for more simple tools.