Vanessa Coppola over at Craft came up with this lovely tutorial based on a project she had done in her elementary school days.
What's great is that, if you use a synthetic pumpkin, you can store it for reuse, over and over. The leaves can be real or made of cardboard/cardstock. If you spray the cardstock with chalkboard paint, you can reuse them next year, as well. Use any branches you like, either from your own garden or from a floral supply store.
For the full tutorial: Craft - Project: Thankful Tree
(Image: Vanessa Coppola / Craft)