Got small children stuck indoors on a bad weather day? Then make them some modeling clay that you can clean up in a snap if it winds up on your furniture. Here’s the easy recipe: In a saucepan, mix 2 cups of flour, 4 tablespoons of cream of tartar, 2 tablespoons of vegetable oil, 1 cup of salt, a few drops of food coloring, and 2 cups of water. Stir over medium heat for 3 to 5 minutes, until the mixture forms a ball. When it cools, mix it with your hands, and hand it over to your young sculptors. Better yet, make a supply in advance and store it in an airtight container, so that you can produce it pronto whenever the need arises.