Elvis Lives! And Other Anagrams by Jon Agee
Definitely one of the best books I've read this year. It's a picture book full of different anagrams, that's when you scramble up the word(s) to make new word(s).

Who Ordered the Jumbo Shrimp? And Other Oxymorons by Jon Agee
This is also one of the best books I've read this year. Man, that Jon Agee is awesome! Some of my favorite pictures are for minor catastrophe and working vacation. His word play books are so very creative and interesting!