I wanted to mount my Vive VR base station trackers up high as recommended (they work so much better up in the corners of the room), but I also wanted to be able to pack it up easily and take it to a friend's house. So I didn't want to screw the base station trackers to the wall. So, this simple bracket can mount permanently to your wall, and the base station tracker just slips in place. I have one screwed to the wall, and the other bracket is held onto the top of a cabinet with double sided adhesive tape.
I printed it on edge so no supports would be needed. If you have a problem with overhangs in the holes, you might want to put one support in the center of each.