white crayon, water colors.
Rustoleum's NeverWet (invisible until it rains!)
Lace resist painting...
DIY Clothespin Picture Frame could even spray paint it to your color!
Turquoise Bohemian Elephant by GypsyTwistArt on Etsy
melted crayon pumpkin - SO DOING THIS. Black over orange or orange over white for Halloween
the basics of retouching and editing
Simple (and cheap) idea for adding some Disney flair to a room