Does anyone have a good source for natural wool yarn? I like to tie classic winged wet fly patterns and prefer to use natural materials. Most fly shops seem to have nothing but synthetics, and if you ask for natural wool they look at you like you have three heads. I have a few sources for some of the more common colors, but when I need something like rusty orange or pale yellow, it's always a challenge to find some. Of course you could always go to a yarn store, but the quantities needed for fly tying are miniscule compared to what they sell there.