More to explore:
Belly Cake - Too Cute!
Mini Baby Shower Cakes. The link also shows a stroller, which would be super easy to make, you just need a big board to lay it on!
Tiffany's baby shower belly cake by The Cake Boutique, via Flickr
baby shower belly cake by Lucyscakesandtoppers.co.uk, via Flickr
Sandy's Cakes: Tarsh's Baby Belly Cake
Decorating with Fondant (with recipe) to make a belly cake
Belly cake for a friend's baby shower
baby shower belly cake!
belly cake idea...
Pregnant Belly Cake
A tasteful belly cake