Faye Goldman (gyroelongated pentagonal birotunda)

Snapology Johnson 48, polypropylene ribbon

[52 F, 90 E, 40 V] This shape is one of the Johnson solids, the 92 polyhedra with no indentations, all of whose sides are regular polygons, that do not have as much symmetry as the Platonic or Archimedean solids. This particular polyhedron is the 48th on the list originally published by Norman Johnson in 1966, and is created by slicing an icosidodecahedron (an Archimedean solid) in half along its decagonal “equator,” separating the two halves, and inserting a “belt” of ten equilateral triangles. You can see this belt in red in the photograph.