My third monitor died recently so I've repurposed the arm for my new mic! It works surprisingly well because this particular stand can move very freely. Originally made for the AlzaErgo T10B, although I believe all of the AlzaErgo monitor stands use this clamp system, so it should work for all of them.

Mic in the pictures is the Sennheiser Profile.
In the pictures the thread is way longer, I've made a shorter version which is uploaded (20mm instead of 30mm).

I've also included a prototype 3/8" version, but I've not tested it.