Clockwise from bottom right, these polyhedra are the cuboctahedron, the rhombic triacontahedron, the rhombic dodecahedron, the compound of the cube and the octahedron, and the rhombicosidodecahedron. They were made using card stock, compass, straightedge, scissors, and tape. Since I started blogging polyhedra, I’ve made most of my models using software, and quite a few using Zome. Making paper models was something I used to do . . . until a couple of days ago, when, on a lark, I made the cuboctahedron you see here. Bitten by the bug, I then made the other four models yesterday and today. There’s something satisfying about returning to the basics now and then.