A temporary color spray. Jerome Russell makes some good ones. They can be found at Walgreens Pharmacy. But be careful on what your spraying it on, it can get on your clothes, brush, backpack. Anything. Don't touch your hair when you spray it because it'll get on your hands. It's a bitch to clean up. They come in colors like pink, green, blond, white, red, pink, purple, blue, and orange. They'll look sexy on anyone! Even if you think you are ugly.
Today, I used Jerome Russell color spray. It was red and he told me I looked cute.