DIY Edible Paint. Mix 3 tablespoons of powdered sugar, 1 teaspoon of water, and 2 drops of liquid food coloring. Apply with a paintbrush to plain dishes, mugs or even glassware. Sprinkle your homemade sugar glitter on the paint while it is still wet to add a little extra sparkle and shine to every dish. And when it’s time to clean up, just wash your dishes like normal. The paint will just melt off in hot water.