Okay, I've been on a dice kick lately, but I really like this dTotal die. One single die can roll d2, d3, d4, d5, d6, d7, d8, d10, d12, d20 and d24. A few types require a reroll, like the d10 and d20. Still, it's pretty clever, and would cut down on the number of dice you had to carry around with you. It's not going to be useful for "buckets of dice" games at 25 bucks a pop, though. Still, I'm sure it looks great in your world's largest collection of dice... Update:...and d30, d40, d50, d60, d70, d80 and d100.