Rock Cake

My aspiring culinary artist, sister-in-law, Mariah, had a birthday and she asked me to make a cake for her. She said that her favorite color was blue so I wanted to have a blue theme for the cake.  My wonderful husband Adam and I love books, so naturally we like book stores, we stop by Barnes and Noble fairly regularly, and I go straight to the cook books and he goes to nature/religion/hiking books. As I was looking last time I found this cake decorating book that had some cool ideas. One I really liked was a cake that had rock candy all over it. I thought it looked very cool. So I took that idea and ran with it all the way to ABC Cake decorating store in Phoenix. I found some rock candy and was ready to roll. Here is the finished product:

I made Italian butter cream and I split it into 3 different colors, all different shades of blue. I swirled them altogether on the cake, then added the rock candy. Good news: She loved it. I think it turned out pretty cool.