| The rhombic dodecahedron is a convex polyhedron with 12 congruent rhombi as its faces. |
| That accounts for a dense, but visually acceptable tessellation of rhombi. |
| The rhombic enneacontahedron is a polyhedron composed of 90 rhombic faces, with three, five, or six rhombi meeting at each vertex. |
| Cut it into rough shapes – triangles, rhombi and trapezoids – each one between 1-6cm wide and 5-15cm long. |
