Have I known how easy it is to make homemade watercolors, I would have never spent a penny at the store buying them! The quality of these watercolor paints is incredible. Making them with three kids took me ten minutes and the cost was around 25 cents.
Think about the containers you want to use. Ice cube trays look great, but the colors float into one another sometimes. It is also hard to keep your leftover paints. I suggest the tiniest Tupperware containers you can find or leftover paint bottles.
Mixing colors is a huge part of this project and small kids can potentially learn that yellow and blue make green, while red and blue make purple and yellow and red make orange. My toddlers were fascinated by this aspect of making homemade watercolors.
1/2 cup baking soda
1/4 cup vinegar
1 tablespoon corn syrup
1/2 cup cornstarch
Put baking soda into a plastic bowl or a measuring cup. Add vinegar, watch the bubbles. Mix in corn syrup. Add cornstarch and mix very well so that the mixture is liquid. Pour the mixture into containers, add food colorings. Mix each individual container. Paint!