My son wanted a cake with Oreos and didn't care what it looked like.
I've done a more traditional Oreo cake (pictured somewhere on this site), so I decided to do something different. He approved :)
This is a Legend of Zelda Triforce cake with his name, age, and the words "happy birthday" in Hylian script. This version of the Hylian is from the Game Cube Version of LOZ: Twilight Princess.
The sides of the Triforce triangle represent Power, Wisdom and Courage.