In this tutorial I'll show you how to make a Mad Hatter's Hat Cake Topper. It can be used as a decoration or a top tier. If you want the hat to have cake inside, simply substitute the polystyrene with cake.
18.
Flip the paste to the other side gently. Be careful not to stretch the paste. If the paste is very stretchy leave it for a few minutes to dry. If after that time the paste is still very stretchy that might mean that you didn't add enough CMC.
Once the paste is flipped to the other side, texture it (there's no need of texturing the middle - it won't be visible - the underside of the hat).