Isn't this a pretty little cake?
This was a really fun one and I plan on doing more. The dollar store had these flat round foam pieces in sets of 2 so I bought 2, cut and layered them, then painted the inside of foam cream. To get the pice cut straight I just traced the circle on a piece of paper, folded it to get it into a third and traced onto the foam then cut with razor each one individually.
I stuck it together with white caulking, with out squishing the inside pieces so there was more room to show the "frosting"