DIY Projects & Crafts How to Make Your Own Watercolor Paint Homemade watercolor paint comes together easily with a few simple ingredients. By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on September 20, 2018 Share Tweet Pin Email What You'll Need Materials Baking soda White vinegar Light corn syrup Cornstarch Mixing bowl Mixing spoon Half-dozen egg carton Assorted food coloring 4-pack Popsicle sticks or skewers Instructions In a mixing bowl, mix 4 tablespoons baking soda with 2 tablespoons vinegar until fizzing stops. Add 1/2 teaspoon corn syrup and 2 tablespoons cornstarch. Mix until a uniform consistency. Pour the mixture into individual egg carton cups, filling each about a third to halfway. Add five to 10 drops of food coloring to each cup, mixing in thoroughly, to reach desired colors. (Experiment, or see color recipes below.) Allow paints to set overnight. Use paints on watercolor paper with a wet paintbrush.