This may be a stupid question....but Can I make a belly cake with a 3D egg pan and mini wonder pan as the boobs? I just won them off ebay and haven't recieved them yet. I don't know if they will be proportionate (spell?). Also how many people would that feed Would they all fit on a 9X13 or would I need to go up to a 11X15?

I'm not sure about the sizes but I've seen many pictures of people using the egg pan and using two cupcakes for the breast.