I see Wilton has a bite-size brownie silicon pan:
Do you think I can use this to make square cake balls? Can you stuff this with cake ball mix and freeze them? Make, like, a poor-man's petit fours...
i don't see why that wouldn't work. Or maybe you could lay out all the cake/icing moosh (my technical term ) in a block, freeze it a little and cut it up like a slice or a brownie?