Crazy Crow has brass and copper cones, and deer tails dyed in various colors; you'd have to make your own but they are available.
Well, I was being lazy and looking for a quick fix...
CC and a few others sell finished product and call 'em 'scalp locks', but Brass, Copper or Tin with Red (Horse) Hair are all sold out.
I suppose I could buy cones/white hair and dye them, but I'm under the impression that deer hair and brass or copper are Eastern Woodlands appropriate (which is suited to the project), while Tin and Horse hair are more a Plains/Western thing.
https://www.crazycrow.com/scalp-locksBarring quick availability, I'll probably wait until my Fiddle Bows need re-hairing and recycle that.