i have small muffin tins....i don't think if you made them in the big size that they would turn out alright, as it would mean longer baking times, etc...

i just looked, walmart has a 24 mini muffin pan (http://www.walmart.com/catalog/product.do?product_id=10285488)...$8...most stores with pots/pans, should have them...they might have a 12 mini muffin one too...i just saw that one and snagged the link real quick...