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.
10.
I added some flower paste to the leftover green paste (about 5/6 sugarpaste and 1/6 flower paste). I alwaysadd flower paste to the sugarpaste when I want to strengthen the paste. Add some CMC to the mix. Keep on adding it gradually until the paste gets quite firm. The paste will be much easier to roll out thin and it won't lose its shape when cutting the circle out and flipping the dummy the right side up (see next steps).
Roll the paste out to about 2 mm thick. Texture it.