My little brother turned 18 last week, and my sister-in-law and I had such a hard time figuring out what to do with his cake. Girls are super simple! A bit of zebra print, a bow, and some pink, and you're set! It was definitely more difficult to pick something that an 18 year old guy would enjoy.
I honestly don't know how to describe this, so I'll just go ahead and put some pictures up. :)
The cake is covered in edible images of pictures of my brother or pictures taken by him. I also painted on a bunch of his Facebook statuses, which are usually lyrics from some of his favorite songs.