I volunteered myself to make a cake for a first grade class party... but really I was looking for a project. Although not the most clean cut cake decoration, it's not the worst thing I've thrown together either.
Step One: Cut Jerusalem out of gum-paste, sugar dough, fondant or modeling chocolate (whatever)
Step Two: Paint. (Gel food coloring and vodka)
Step Three: Frost to perfectly baked cake.
Enjoy!