This would be really funny:
There is the skeleton baby:
And the Beer Belly:
Whadya think? There were other really funny ones but they all involved painting my belly and I don't think that I could pull that off having to pick up a toddler all night. He would be covered in paint by the end of the night!
*I lifted these pictures from google images and blocked out the faces because they probably don't want their mugs on my blog :)