I took the inspiration from the invitation as well a a variety of polka dot cakes I've seen posted on Cake Central. Its a vanilla cake with chocolate cream cheese filling frosted with butter cream with just a tad of almond extract. And of course the polka-ducks(as my nephew calls them) are marshmallow fondant. For the first time I am actually happy with my cake! I still see all the flaws etc, but I feel pretty satisfied.