Eternal Sunshine
Totally scammy. It was originally founded to help kids with alopecia get wigs but then it ended up becoming a way for a bunch of rich politician's wives (like Rich Santorum's wife) feel like they have jobs. You can check the board members and financials, it's all public on the Locks of Love website. The organization underwent a bit of a shakedown in 2007 but it's still fairly crappy.

It took them a decade to sell/donate 2000 wigs while the Pantene Beautiful Lengths program did that in its first year. No one with cancer gets a wig from Locks of Love. Locks of Love really does throw most of the hair they receive out. They say it themselves.