Gather your surfaces, such as geometric terrariums and your favorite paint colors. Before painting, wipe down your glass surfaces using rubbing alcohol.
Mix together blue, white, and green until desired color is achieved. Using a cosmetic sponge, pounce the mixed color onto the glass area. If needed, tape off each facet of glass to avoid getting paint on the metal areas.
Mix together red and white until desired pink is achieved. Using a cosmetic sponge, pounce mixed color onto glass areas.
Mix together blue, white, and purple until the desired color is achieved. Using a cosmetic sponge, apply paint onto glass areas.
HELPFUL HINTS
When mixing colors, test color with a cosmetic sponge on a scrap piece of glass to be sure the color is what you would like.