I remember my aunt making this for us - we were playdough fanatics and used lots of different colors very often. It's easy to make your own, in any shade you need! Go light(ish) on the color, intense colors will stain hands and clothes. So think pastel-y (not all "baby" colors, just not navy blue!).
Ingredients:
2 cups of flour
2 cups of water
1 cup of salt
2 tbsp oil
2 tsp cream of tartar
2 tsp color (your choice!)
Directions:
Mix food color with water.
Put all ingredients in frying pan.
Cook on medium heat until in a ball.
Remove from heat and let pan cool. Roll out and knead till smooth.
Repeat with all colors you desire! Store in air tight containers (think plastic food storage containers).