^^I also use a bunch of magic arms, though usually to add lights and mixpres to my camera tripod.
I have had very good luck with the Manfrotto magic arms. They come in tiny, medium, and big, with a lot of different attachments (you just need 1/4-20 on one side and, ideally, a mafer clamp model 035 on the other side)
It will work great, but unlike the solution I posted, if you loosen the knob too much the camera will want to drop and smash into the mic stand---have to keep a hand on it.