My son absolutely loves trains so when he turned 5 I made him a cake in the shape of a train. I used a Wilton cake pan that was in the shape of a train. I made it a marble cake, using box mix and frosted it with vanilla frosting. I than decorated it with candies such as gumdrops, licorice, jelly beans and marshmallows. My son loved his cake, and it was easy and fun to make.