A little place on Rt. 7 called Best Picks has a lot of different materials for sale at great prices! They are a estate/ consignment shop and had at least two big boxes of different stuff for, at the time, $1 per package! as I recall there is a lot of white strung saddle, Big Fly Fiber, Bucktails, craft fur, and who knows what else. Sadly, no dry fly hackle I already bought it all

Disclaimer: I don't know if the prices are still that low, but its worth swinging by if you're in the area.