The Sansu Set d10

Scouring through the polyhedral dice available to early gamers, you can sometimes stumble across a peculiar looking ten-sided die numbered 0 through 9. While these are obscure dice in America, they are well known in Japan, where they were included in an elementary school toolkit called a "Sansuu Setto" (さんすうセット, or  算数セット), which just means "arithmetic set." Today, let's unbox a Sansu Set, and look at a few variations on the d10s you can find within.

The Edmund Scientific Polyhedron Set (1966)

In cataloging the polyhedral dice available to early gamers, we shouldn't neglect a few products that weren't marketed as dice at all. In the 1960s, educational supply companies made models of the regular polyhedra available for classroom use, like the classic Edmund Scientific set shown above. Although they are unnumbered, a flick of the pen (or marker) might fix that. The question is, how well would they have served as dice?