We used the book, "Spookley the Square Pumpkin" as our muse. That is what the scarecrow is reading.
In the story, Spookley, who is square saves other pumpkins because of his shape and so the farmer decides to grow all different kinds of pumpkins, like so...
My class did the clouds and the class next door did the pumpkins. I did the scarecrow.
Believe me, this display is going to stay up well after Halloween! It took a lot of time. We didn't win but here are pictures of other classes that did.