groom's cake coming up. needs to be all buttercream and no fondant. any idea how i might go about making a peanut shaped cake? i was going to use the half soccer ball pan side by side, but can't quite figure out how to do the sides unless i build it up with alot of buttercream. any other suggestions? thanks!

How big?? I would do 2 sheet cakes with filling and carve it but that could be much.