Fake Cakes

I am having a fake cake for my wedding. We`re just buying round stirofoam teirs and then covering them with brown, pink and cream fondont.
(the colors of my wedding) Then were serving sheet cakes to the guests! To make that cake i want real it was going to cost $600.00! Now it will cost only about $100.00! My mom and i own a cake bussiness and you dont even know how many people request there cakes to be fake! Also too...sheet cakes tend to be more moist and tasty anyway.