To make this belly I used 10″ rounds. To get the rounded top I used a mixing bowl that fit right on top of the pan. It didnt make a perfect dome but I just mixed a little cake and frosting to round the top off. I stacked and chilled the cake thoroughly then used a little carving knife to round the edges (I just took little at a time.)
I gave the whole thing a good crumb coat then chilled it again.
a little faith and a lot of frosting