Painting lockers can really jazz up a dreary place. I painted the lockers in my son's school. I started with a base coat of latex yellow paint & used the overhead projector to show images that I took from a coloring book. I drew them onto the lockers with a black sharpie and then painted them in. When finished painting I outlined them using a broad tip marker. Then finish it off with a coat of acrylic sealer. The kids love them. Good Luck & Have Fun!!