How can a teen make money creatively?

My gf made bank selling Avon while going to nursing school. I think its about $10 to get started but you make your own hours and schedule. Not sure if you have to be 18, but it would be easy to get signed up under your parents name. I also have a lot of friends who clean homes on the side making average of at least $50 a home per day worked. Not bad for a few hours worked. Good luck.