Seasonal Gnome: Garden Loom. This is beautiful for summer grasses and flowers, but you could leave it up year-round and weave in autumn leaves or winter twigs with berries!
Creative Nature Display: forget turning the leaves into people or animals, this design would be a lovely way to display a collection from a nature walk. I like the stick frame and the cards hanging down. Would be creative as a fall leaf collection or a pressed flower arrangement. Project appropriate for Apologia Botany.