OK, I realize this topic may creep some of you, be it because of hygienic or ethics questions. I trust you will understand it comes out of pure curiosity and of the desire of using more natural materials in this craft.
Thing is, when cutting my curly, cottony hair by myself, I end up with little brown balls of hair, very similar in shape to what you might expect from a ball of coton, although a little less dense. This is far from being the first topic created on the question and, in addition to the many uses of animal hair you can find on the internet, I've read a few things on making yarn or stuffing out of human hair and I was wondering if it would make a good stuffing material for finer works, as amigurumi by instance.
I know this idea raises a few questions, especially regarding hygiene and ethics (hair being a biological material) but while I would be happy to discuss these with you, I'm especially wondering about the technical aspect of the question: durability of the hair as material, change in shape overtime, washing, holding of the stuffing, treatment which would make the whole process easier, etc.