I was fed up with seeing cable clutter and plug bars, so I made this 'box' to mount a KCD3 Rocker Switch under my desk. That way I can easily switch on my gear (e.g. computer monitors, speakers) when I need it.
The opening is big enough to snugly fit a 10.4mm x 30.4mm (compressing the spring arms) Rocker Switch (usually called KCD3).
You can mount it however far recessed you like it. I have it just so far that I can not see it from above the desk.
I added countersunk holes for screws (I am using T-20 Spax), but you could also glue it or use any other fixation material.
The holes on the rear of the mount can be used as strain relief with a zip tie and the covering plate reaches so far that the connectors are not exposed and can not be touched accidentally.
Tip: It therefore is easier to feed the wires through the box and to attach the wires to the switch before you push it into the box.
Hope it helps you to a cleaner setup and let me know if you have any improvements or suggestions :)