This is a d120. It's new, and very fetching. It's also a "technically correct" die, coming out of the world of mathematic-geeks. I learned about it via the New Yorker:
"The d120 is a polyhedron, more specifically a disdyakis triacontahedron, a geometric creature first described by the French-Belgian mathematician Eugène Catalan in 1865..." (
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Along the way, I found websites that sell dice: d120's, classic d6's, and everything inbetween. BIG ONES, small ones. Round ones, misshapen ones. Every colour you can think of. Dice with symbols, written numerals, letters, including other alphabets.
And my favourite: blank dice. I can't wait to get some for doodling fun... Best of all? The aren't expensive!
The dice you never knew you wanted - The NewYorker
This d120 is the largest mathematically fair die possible - The Nerdist
The Dice Shop - MathArtFun
Sex dice (yes, there is/are such a thing!)