I have a small plastic container of different kinds of dice, which I use to generate passwords from my own Diceware-style word lists (see http://world.std.com/~

I have a small plastic container of different kinds of dice, which I use to generate passwords from my own Diceware-style word lists (see http://world.std.com/~reinhold/diceware.html http://world.std.com/~reinhold/diceware.html). I like the 10 sided dice so that I can roll 4 and pick any number from 0000 to 9999. For an RPG that needs a "random" percentage, two of these (in different colors) would suffice. Any board game store has an assortment of crazy dice for sale.