I also have re-worked Axis and Allies to use a 12 sided die, as I was not satisfied with using a D6 for that game with all of the additional units. When I teach my game design class, we spend an entire period discussing probabilities and how to get a range of them, from flipping a coin (and hoping that it does not land on an edge, I have had that happen) to spinning a wheel, to drawing cards (from Candyland to a 54-card deck (I leave the Jokers in), to the full range of die readily available.