After deciding to start using a string tracker( see Turkey Nightmare) I wanted to find a simple, secure way to attach it to my longbow without ruining my bow or quiver.
I made a simple bracket out of some 1" wide, 1/8th" thick aluminum flat stock. I bent it the the shape i needed, drilled a hole for the string tracker to bolt to. Drilled a 1/4" hole and replaced the short 1/4" bolt on the lower part of my Boa quiver with a 3/4" long 1/4" bolt. It is secure I can adjust the angle on it and I can simply swap the original bolt back in and it's like it was never there. Once I knew it worked I took it back apart, rounded the edges on my belt sander and painted it flat black.