I’ve sort of been putting this one off because I’ve had so much trouble with it. Challenge #62 is Ushio Ikegami’s Kepler’s Star.
There aren’t a lot of pictures with this (it looks mostly the same from all directions). While there are some flips and stacks (that is, folds through multiple parts together that show up as different polarities on the pattern) that are usually better done in diagrams, I think this would be difficult to do other than in a crease pattern.
I figured out reference points and put the pattern on a big square then cut to hexagon, but I used the thin paper I always use. This was too thin to work well. I tried to stiffen it up, but that was too much. So I finally copied the pattern on regular paper and folded that.
One of the pyramids would be a different colour with reverse colour paper. I put dots on it to kind of illustrate that.
This is an interesting model, as it takes a modular model and makes it with a single sheet.