Galaxy Jars Supplies: Acrylic paint Jar or bottle Cotton balls Glitter Water Separate cups for each color How to: Squirt a bit of acrylic paint into a small plastic cup of water and mix. Place your first layer of cotton balls into the jar and cover it with glitter. Then pour the first color in just enough to saturate the cotton. Repeat the steps for every new row of color until you've reached the top. Close the jar/bottle and enjoy your galaxy jar.