One of my favorites is the monkey princess I did for a co-worker's daughter after she saw the princess Hello Kitty. (Sorry I can't find my folder of resized pics to attach.)
I'm proud of the castle cake I did for my daughter last year. It was one of my first cakes and she loved it.
I also had alot of fun with pirate ship and treasure chest for my son last year. They're all in my gallery.