Last month I read a ton of fall books with the two pre-k classes. After we finished our stories we made these fall collages one week.
I found this tree coloring page online and tweaked the size to make it just right. Then I put piles of cut-up construction paper at the tables and let the kids go to town with crayons, glue sticks, and the paper.
I liked this project a lot, they made great collages.