Ever thought about making a cake that looks like a book? I made a Harry Potter birthday cake a while back. If you want to give it a go, you can find a lot of inspiration on the web:
Playing by the Book's Edible Book Festival 2012 entries and Edible Books Pinterest board.
Tattered Cover's Pinterest board
More edible books at Cakewrecks (these were made by professionals).
Like puns? The Seattle Edible Book Festival has them in spades. You can see a Flickr album of the festival entries here.