This is a cake a did for a little girl who was having her birthday at the mall. I made this cake out of two 12x12 pans and then cut them down to fit my board. I covered the opening of the bag with fondant first and then used my new airbrush to paint it black inside. Then I put fondant on the entire cake and had it over hang the opening a little. Then I airbrushed it too. All of the finishing touches were done in gumpaste or fondant.