Prepare cookies. Place sandwich cookies on wax paper. Heat Candy Melts pouches according to package directions. Using scissors, cut small hole in corner.
Decorate cookies. Place cookies on paper towel. Spray with Color Mist. Let dry, about 5 minutes. Repeat on other side. Place cookies on wax paper. Drizzle desired melted candy back and forth over some cookies, leaving some cookies plain. Sprinkle with sugars or sprinkles.