I <3 my Wii. If you don't have it already, you *must* purchase Super Paper Mario. It is so cool! Oh geez! And you have to send me reminders... 'cause I'm ditzy that way... I checked our flasks, and we didn't have any that could accommodate a 4" disk. If you're willing to cut it in half, then there were some that were 4"X6". I've not tried sand casting before, but maybe that would work better than chopping it in half.