We have this strange place called Lou's Surplus, at a few of the farmer's markets. All kinds of knobs, tubes, handles, nuts, bolts, screws, taps, dies, ferrules, sand paper, emory cloth, dental picks, different varieties of hack saw blades, etc. A most bizarre collection of hardware and fasteners. I bought a pile of unfinished new screw driver handles and ferrules there. Works for range rod handles, file handles, all manner of things.