I collect numbered and pipped polyhedral dice. My dice collection is split into four parts:
Shapes (D1…D120), in particular isohedra of all types (Platonic solids, Catalan solids, dipyramids, trapezohedra, prisms, antiprisms etc), plus spherical and other dice. 


Configurations: Have you ever noticed, · that the numbers 123 on a tetrahedron are almost always printed in clockwise? · there are 16 different ways to print 1..6 pips on a die? · that there are surprisingly many different ways to print the numbers 1..6 on a D6 (8192 if the numbers on opposite faces sum to 7) · how many different configurations for D8, D10, D12, D20 and D30 are available? 
Dice with special numbers or pips. ”Regular” dice (Dn) come with numbers 1..n, some with 0..n1 (e.g. D10: 0..9). However, there are many dice with other numbers, e.g. nontransitive dice, Sicherman dice, cheaters, and others. 


Dice as random number generators. The main purpose of dice, apart from being collected, is to generate random numbers. This section shows my collection of such number generators based mainly on isohedral shapes. For a desired range of random numbers (e.g., 1..4), there are often various shapes possible: tetrahedron, square prism, octahedron with the numbers 1..4 printed twice, dodecahedron with 3 x (1..4), etc. 
In order to keep my effort within reasonable (?) limits, I am interested neither in the color nor the material of the dice, and I prefer standard sized dice (16mm).
Various dice, some of my wanted dice and duplicates I am ready to trade can also be found on this website.