Ultimate PackThe complete set of Platonic solids, in translucent CMY. All five of geometry's perfect shapes: the cube, the tetrahedron, the octahedron, the dodecahedron, and the icosahedron, each one mixing colour as light moves through it. Rotate one just right and colours blend and merge; place it in a sunbeam and it steals the show. There will never be a sixth Platonic solid. Here are all five.