Stellated Dodecahedron II
The shape is a shape based on the regular dodecahedron, a platonic solid composed of twelve regular pentagons. The stellated version replaces each face with a five-sided pyramid, resulting in a star-like shape composed of sixty triangles. My Stellated Dodecahedron is the result of a long and arduous quest. I made several attempts at it a few years back, but it was beyond my skill at the time, and I only barely managed to make one out of a giant sheet of foil, and it didn't hold together too well. For the new attempt I began with a pentagon sheet of paper rather than a square. When I got to the end I had a nice array of identical flaps that made perfect tabs, and I was able to use a twist-lock to finish the model.