I've been doing a lot of traveling and run-gun style shoots lately. So I wanted an easy to travel with, Ultra lightweight, telescoping, mini boom mic setup. By starting with an inexpensive Sunpak 424MX Carbon Fiber Monopod, I cut the foot off and attached a 1/4-20 threaded stud. You can find these studs at auto parts stores, as they are used for building car engines.
The self powered Rodemic Videomic Pro attaches at technically the foot of the monopod which adds better balance and leaves a solid handle for the boom operator. A portable recorder like a Zoom H1 is attached at the (technically top) other end of monopod 1/4-20 thread.
The quick snap locks on this monopod are fast, and the poles don’t rotate when unlocked. This little bit of kit packs small, lightweight to hold, works and sounds great! Yes, I know you can create something similar with just about any telescoping pole, but my personal goal was something Carbon Fiber, thin, and with the quick snap locks. The fact that I had this monopod already saved me money as well.
Unfortunately if you want to make something similar, my Sunpak is discontinued, but here are some other good options I think would work as they are 4 section monopods (which means they fold small and telescope to a good length)