....re> phones. Good thought. I hadn't. Thank you.
Here's a thread brush made with hairs of some kind. I think it's badger guard hairs.
This is essentially the same thing as a wet fly hackle made as a dubbing loop, which
might have been made on the fly as you tie it.
But it's a lot easier to make these instead, as modular units, in advance, independent of the fly they
eventually get tied onto. If you leave a bit of thread running wild at each end--after the fabric cement cures--it is
easy to tie these on as if it was a hackle feather.
Hair dubbing loops made ON THE FLY are a lot trickier to accomplish well.