In a small sauce pan add corn starch, salt, sugar and water. Heat over medium heat until the mixture starts to thicken. As it thickens stir with a spoon until it gets to a pain consistancy.

Remove the mixture from the stove and give it a good stir.

Divide the paint mixture into plastic bowls or containers and add a few drops of food coloring to each one and mix the food coloring in well with the paint mixture.