Whant a microphone arm with style:

use a dragon foot.

This is a new version of my (thingiverse) foot, redesigned for AMS and with fuzzy skin.
uses a standard 3.5mm extension cord (like this) and a simple microphone (like this). 
Additionally you need an M5x20 hex bolt, a M5 nut, and a 4mm wire.
 

For additional sturdiness, you can also change the infill to gyroid and drill a hole in the bottom to fill it up with epoxid…

have fun.