To make homemade no-cook Play-Doh, mix 2 cups of all-purpose flour with 2 tablespoons of vegetable oil, 1/2 cup of salt and 2 tablespoons of cream of tartar in a bowl. Add 1 1/2 cups of boiling water to the dry ingredients, and stir to create a sticky dough. Once the dough cools, remove it from the bowl, and knead to remove the dough's stickiness. If necessary, add more flour to improve the texture.
The homemade Play-Doh can be colored with food coloring. To color the dough, add the desired amount of food coloring to the 1 1/2 cups of boiling water before it is combined with the dry ingredients. If the food coloring stains the skin during the kneading process, apply baking soda or toothpaste to the stain, and scrub gently under warm water to remove it.
Customize homemade Play-Doh by adding things that change its look, smell and feel. Use stones, shells or sticks to imprint different patterns on the dough's surface. Add a few drops of glycerine to make it shine; glitter can be added for a more dramatic effect. Mix in peanut butter or lavender for alternative scents. Use objects like seeds, buttons or beads to change the texture.