Treat your kid chefs to a backyard culinary experience by constructing a mud pie kitchen. Pick a shady spot in the yard near lots of dirt, sand, sticks and leaves — and the hose, of course! Hands On As We Grow offers a great tutorial on how to construct your own mud kitchen in a day. Once you've got the kitchen built, stock it up with some old pots, pans and utensils and let the kids get busy.