I'm using a piece of 2X2 for the bottom. It has enough meat to take two screws from the bottom bracket of the music stand. I drilled it through the center and inserted a large finishing nail through the hole. It mates to a section of broomhandle notched on the top to accept the crossbar. I just drilled out the bottom for an inch or so and put some axle grease in the hole. It fits on top of the nail.
