Making little creatures out of found nature items and basic art supplies is a wonderful fall craft. It exercises the child's capacity to imagine. A wonderful extension is to have the children write a story about the creature they created.
What you will need: nature items such as pine cones, pods and small sticks, pipe cleaners, googly eyes, tissue paper, construction paper (I printed leaves on my paper as our fall did not produce much in colored leaves), artist's heavy gel medium.
Box of nature items and pipe cleaners
Box of paper leaves