The rhombic triacontahedron is a polyhedron with 30 identical faces. It can be a 30 sided dice, but by duplicating numbers on faces it can be used in place of dice with numbers of sides equal to any of the factors of 30. Versions representing dice with 5, 6, 10, and 30 sides are given. Two "loaded" versions of the six sided dice are also given. One has extra 3's; the other extra 4's. They should show a 3 or 4, on average, once in 3 throws. OpenSCAD code is included.
The dice were printed on a Replicator without support. They work best if thrown on a hard surface and occasionally "quiver" before settling.