Stumblewyk
Adventurer
This. I have my huge "combat dice" that I always jokingly threaten double as projectiles versus particularly annoying players, and my teeny-tiny dice. And then a pile that fit in between them in the "standard" size.Seriously, though, I have die ranging from the size of golfballs down to the size of a pair of asprin- as long as they aren't loaded, their size doesn't matter.
There is no "regulation size". If they're polyhedral and not "loaded" they're good to go.