One of my kids wanted a microphone stand to record violin playing. We have a microphone, but no stand. But we had an old dead halogen torchière lamp in the spare parts bin, some 3/4" EMT conduit, and a 3d printer. The lamp had three vertical sections of which two sections provided about the right height, and it had a weighted base to keep it stable. I removed the top section, measured the thread (UN 1 3/16, 16TPI), and modeled a set of pieces that can hold the EMT and screw into the lamp.
It takes an M5 bolt through the top to tighten it together and hold the boom from the mic stand at the intended angle by friction.
I’m still playing with relative clearances in the model, and I can’t imagine anyone else would want it anyway, but it was still fun to make it. I had to print a few minor variants before it worked well enough, so I probably spent about $6 on filament printing them, instead of $20 from amazon which probably works better than my hack and is more convenient.