I was wondering if there was such a bracket or some way to mount a mirror to the older general scanner galvos? what i have been doing is cutting a slot into a rivet, gluing a mirror to that and then stuffing it into the hollow part of the galvos central shaft, i am trying to mix RGB as an experiment but getting the mirrors parallel has been a challenge.

I need mounts for my dichro's as well but don't have a clue where to start