8" round cake dummy 6" high reaowazo dummy cakes are simply iced and decorated polystyrene blocks. made from high quality polystyrene bead foam. the smooth edges and light polystyrene allow you to place down your fondant and other materials over the edge snugly and professionally. prevent long-lasting waste and save time and effort with practice that's affordable and easy to manipulate - or simply be daring! use this polystyrene dummy with fondant, buttercream, royal icing and modelling paste. it can be washed and reused if you wish to redecorate for another occasion!