We have Explosion card pattern that would be awesome with this! How-to Make a Fondant Explosion Cake- use royal icing to to make stars and other things. I would not use fondant tastes yucky, prefer buttercream icing .
A chocolate frosted chocolate layer cake, surrounded by over 40 Kit Kat bars, topped with 2 large bags of M&M's and wrapped with a beautiful ribbon that's tied in a bow. (frosting helps the kit-kats stick to the cake)