I had an idea to do a slot machine for my mother, the gambler in the family, and finally found instructions for this cake online. Boy do I wish I had known about CakeCentral back then! Anyway, big cake, HUGE time and difficult to get the cakes to stay together - an 11x9 and 1/2 round. Ultimately she was tickled and all of the cake was eaten, so it could not have been all bad! Definitely have ideas on how to make this easier in the future! Buttercream on chocolate cake.