Some time back I got a small face mill in a box of other tools at an auction. Since the taper shank was incorrect for my milling machine, a new arbor would be required. I had a chunk of tool steel that was about the right size, so with a little lathe and mill work I made a new arbor. In retrospect I should have planned the drive lugs a little differently as the welds don’t look all that great, but the arbor is serviceable.
