One of the popular themes that I have seen over and over is Star Wars. Star Wars is a great them for any age, and any gender really. The party that this cake was for had half boys and half girl guests and they all had a blast. With Star Wars the cake ideas are endless and can vary in their difficulty.
Here is a simple Star Wars Cake that I made for Matthew.
"May the Force Be With You" as you make your next Star Wars Cake!