I used to use alot of the craft store craft fur before they began selling it in fly shops. The fly shop stuff that they have now is so superior that the old stuff is a waste of money.
But with acrylic rug hooking yarn especially the Aunt Lydia's brand you're far better off getting it from a craft shop instead of shelling out for fly shop spooled "Antron" yarn or little packs of antron dubbing.
I think the real finds are the seasonal stuff especially Christmas tinsels and Halloween wigs
This hollow fleye is tied entirely from a "Don King" fright wig