We've been searching for the perfect way to string some Fall around our apartment, and we love the realistic colors created on these paper bag leaves. You'll need some brown paper bags (surely you have a few left around the house, even though most of us are using reusable bags of course), and acrylic paints in Fall colors.
goes into detail on how exactly she created these, and we're kind of wondering if ours will turn out quite as lovely, but it's worth a try!
Once your paper has dried, cut out the leaf shapes, and string them on some twine around the house. A simple decoration that can come out year after year.