Mix food coloring drops with the bubbles. My little bubble containers measured 0.6 fluid ounces, and I mixed in 20-25 drops of food coloring.

Add in 1-2 drops of the vegetable glycerin, close and shake well to make sure everything is mixed thoroughly! The added glycerin isn’t necessary, but it does strengthen the bubbles. This is especially helpful if there is wind.

Take your colorful bubbles and your watercolor paper outside to the grass and have fun creating your masterpiece!