My kids used to do this at church every year in the fall, and I think it's a good tradition.
Paint each finger a different color, and the base of your hand brown. Smash your hand on the paper. Let dry. Add details.
And now for a "Homemade Christmas" goal: I will post at least one homemade Christmas idea every day until the Big Day. At least, that's the plan. We'll see how it goes. :-)