Your designs can spark a whole range of emotions in people. Color theory unlocks the secrets of how to use hues to inspire joy, sadness, and even hunger. -- or, you know, make art or not to have clashing colors.
Childhood 101 :: Kids Art Ideas - Making Scratch Art *Tutorial says to use oil pastel and then cover with black oil pastel. Instead paint on black tempura paint with a few drops of dish soap mixed in to help the paint stick.