Both are dead. I saw some old post of guys creating new ones with 3D printers, but i guess not anymore.Mounts, as in the bits that screw in, or the clips that hold the shaft?
The mounts can be sourced.
Think the clips are NLA, unless something has changed.
Might be able to snare a pair from somebody parting out?
Markos, make us some sun visor snap clips!