I didn't find this prompt easy to fill, at first, but it ended up being very stimulating.
Is it hair, if it's sculpted rather than grown?
Is it hair if it's hanging on a rack?
I think this is human hair, turned into a horse's tail.
And I know this is, in a piece of home-made jewellery.
(And I really must get a new glass for that old pocket watch case and do something proper with it.)