Teach Them To Fly: Saying words that begin with W is a lot like making wind with your mouth. Students practice "w" sounds while being the wind, teacher photographs, students add leaves to complete "W is for Wind" project.
Creative Nature Display: turning the leaves into people or animals . this design would also be a cool way to display a collection from a nature walk. Interesting stick frame and the cards hanging down. Project appropriate for Apologia Botany.