Zocchihedron is the trademark of a 100-sided die invented by Lou Zocchi, which debuted in 1985. Rather than being a polyhedron, it is more like a ball with 100 flattened planes. It is sometimes called "Zocchi's Golfball".
Zocchihedra are designed to handle percentage rolls in games, particularly in role-playing games.
Read more about Zocchihedron: History, Probability Distribution of Rolls, Patents