They seem to cost quite a bit for anything worth having. Anybody ever make there own? Using wood? I figure the "boom" bit would sit in a bridle joint with a carriage bolt to pivot on. Clearly the joint wouldn't get glued up and it might help if it was cut a little sloppy for greater clearance. Drill a range of holes down the boom so it can be repositioned. The legs can be over built to what ever the heart wants. 4x4 legs? Add a weight to the end of the boom opposite the light. Easy enough.
Obviously this won't look like a metal boom. It'll be a lot harder to take apart but build it with bolts and it should come apart when needed.
Am I missing some critcal function of a boom?