Locks of Love.

In 2003 when we moved to Kansas it was time to cut my long hair which for months I had mainly worn in a plaid because it had gotten so out of control. When I went to the hair dresser I heard of Locks of Love and instantly went for it. The outcome of that haircut was not bad at all and having donated my abundance of hair REALLY felt good!

From their site:

Locks of Love is a public non-profit organization that provides hairpieces to financially disadvantaged children under age 18 suffering from long-term medical hair loss from any diagnosis. We meet a unique need for children by using donated hair to create the highest quality hair prosthetics. Most of the children helped by Locks of Love have lost their hair due to a medical condition called alopecia areata, which has no known cause or cure. The prostheses we provide help to restore their self-esteem and their confidence, enabling them to face the world and their peers.

— (Via » Locks of Love helps disadvantaged children suffering from medical hair loss).