I made this support to hold exhaust pipes or other items when working under my hoist.
It is short enough to fit under a mid rise hoist but still extends tall enough under my full size hoists. I have also used it as a stand for my drill press for longer pieces.
It is 1" pipe welded to some 3/4" shaft. Welded to a brake rotor as base and a piece of channel iron in the top to hold the exhaust pipe.