At least for me, it’s hard to tell what’s on a Gamescience die until I’ve inked it — I see a decahedron, I assume it’s a d10. Not so! This assortment is weirder than I was giving it credit for, and I didn’t notice until I started inking some of my favorite colors last night.
Here are the first three oddballs I discovered — each has its highest face up.
From left to right, that’s a die numbered 00-40 twice, a decehedral d5 (a d10 numbered 1-5 twice), and a die numbered 10-50 twice.
The d5 I get: Before there were five-sided d5s, there were 10-sided d5s. But for the moment, at least, I can’t think of a situation where I’d need either of the other two — which, now that I’ve typed it, feels like a challenge.