Running Mouse Guard for a Charity Event and need dice

Is there a source available to get Mouse Guard Dice for the RPG. I am running a game for a local charity event and cannot seem to find any of teh Dice or cards available from teh boxed set any where. Is there a place I can get just these components?

They are only in the boxed set.

Well, poo! I was afraid of that. Guess I will have to digg around on the interwebs and see if I can find a box or three.