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 .
Snowfall Celebration Buttercream Cake - Celebrate snow, winter and special times with a snowflake-decorated buttercream cake. Wilton Delphinium Blue Icing Color and Sky Blue Icing Color create the dee (Christmas Bake Decorating)
Intricate Cake Design (no details given, but I imagine this is just white chocolate piped onto a hand drawn or printed design on wax paper, put into the freezer and then adhered to cake with dots of melted choc) Cute for cupcakes too!