I found this little gem over at Chicken Spaghetti--a Food Network Dr. Seuss Cake challenge. This vid focuses on the Green Eggs and Ham cake.
What I liked best about the clip was that, to the judges, the story that the cake embodied was just as important as the techniques, so the cake artists had to sit down with a book aimed at 5-year-olds and really study it. Cooooool.
Other cake stories seemed to include The Cat in the Hat, Horton Hears a Who, and possibly maybe The Lorax. Now if you'll excuse me, I gotta go bake something.