My eldest son , Aaron, turned 13 last month and we recently had a party for him and his friends to go and see the new Transformers movie.
As has become the tradition in our family, my wife and I combined forces to make a Birthday cake. Jennifer made the cakes and icing and I shaped and decorated them. This time we followed the Transformers theme and created a vanilla "Autobot" cake and a chocolate "Decepticon" cake.
A quick side note... My wife bought the automatic re-lighting candles (without realizing) and they were a source of much amusement as Aaron continuously failed to blow out the candles. Try them sometime with your kids.
Go have a look at the other cakes Jennifer and I have created over the years.
PS: The recipe for the cakes and icing is also provided.