Decorate cookies however you wish. Use this recipe for a quick colored coating, and embellish with candies and sprinkles.
Microwave 1 (24-ounce) package vanilla candy coating in a glass bowl on HIGH for 2 minutes, stirring every 30 seconds until melted. Divide melted candy coating among individual bowls. (The number of bowls will depend on how many colors you wish to make.) Stir liquid food coloring in desired colors into each bowl. Reheat colored coating as needed.