Pinterest and I had to make one of my own.
I started out by pulling 26 books that had not circulated in the last 5 years.
I did a google search for Mr. Potato Head and found many images of Mr. Potato Head accessories. I printed these out and cut them all out.
I then decorated the books with the accessories to make them look like Mr. Potato Heads.
For the top of the display I made a Book Potatoes sign using "wooden" blocks.