"Do you know of anyone who has created fiber art with Human Hair?"
Um, not personally, no. I have Angora Goat friends, and Angora Rabbit Friends, and I crochet a fair amount of dog and/or cat hair into everything *I* make, LOL!
It was 'all the rage' in Victorian Times. Gee. Wonder why it fell out of favor? *SHUDDER* It appears that it was a 'mourning' thing when a loved one died. Which was pretty often.

Thank you. I didn’t know about that.
I would bet such customized art would sell today, but the artist would need to pick just the right time to pass their Business Card without upsetting the potential customer!
Does fabric paint qualify?