Play-doh
2 C flour
2 C water
1 C Salt
1 tsp. vegetable oil
2 1/2 tsp. cream of tartar
Food coloring
Mix first 5 ingredients together in a sauce pan. Cook on medium heat until it holds together-(keep mixing so it does not stick to the pan!) Once mixture started to hold together in a ball, scoop out onto wax paper and allow it to cool slightly. Knead in food coloring and keep in an airtight container for 1-2 months or until it's so gross you can't stand it anymore.
"Martha's Colorful Clay"
Same idea, little drier and will hold to sculpting
Mix 1 C. Flour, 1 C. water, 2 tsp. cream of tartar, 1/2C. salt, and 1 tsp. canola oil (like Wesson). Heat on low mixing constantly so that ingredients don't stick to pan. When it forms a ball, scoop onto wax paper to cool. You can add food coloring before or now, but knead "clay" slightly so that it holds a smooth shape.
Store in an air tight container for several months.