Cover a flat surface with wax paper.
Fill the bowl with water, almost to the top. Drizzle or pour nail polish colors onto the top of the water. I used 3 different blue colors. When you are satisfied with your design, cover the jar.
To cover the jar, place your fingers inside the jar and gently plunge the center into the bowl, twirling and tipping the jar so the paint covers the majority of the jar.
Set aside, upside down on the wax paper to set and dry.
Repeat with the desired number of colors and jars.