I belong to a fold forming group on FaceBook called Foldforming Central, which has started up a monthly challenge. February's challenge was to create a fold form piece that was functional.
I like to use these challenges to make something that I've wanted to make for awhile but was never motivated enough to do on my own. I've wanted to make some kind of lighting for a couple of years now. I was a little intimidated by the wiring and how it was all going to fit together.
I decided to use the Heistad Cup fold for my light. This form started out with a 5" square of copper. After I unfolded it, I cut in-between the folds to make the leaf parts. I also enameled it by torch firings. I went and bought a light fixture, cord and a plug. Actually, I bought lots of those, because initially I thought that I would make about 4 or 5 of them! I did make about 4 forms, but learned a lot about what would work and what wouldn't. So in the end, one was plenty!