Have you ever sold your hair, or know anyone who has?

I have pretty long hair and I’m cutting it tomorrow. My first thought was to donate it, but with further research on the web I’ve discovered since my hair is dyed they won’t use it. I can still donate it but chances are they won’t use it. So my next thought was maybe I can sell it, and I did a little research and found with my hair length and thickness I can get between $600—$1,000 per foot. I would just like to know if anyone has ever done this before, and if so, what did your hair go for? Do you know if people buy dyed hair? Is it more valuable to have naturally wavy hair, or could this make my hair less valuable?