After I finished installing my driving lights I didn't know where to mount the switch, or what switch to use. For awhile I used a generic toggle switch hoseclamped to my voltmeter. I came upon some discussion at Hondashadow.net where someone had found a chrome waterproof switch. It sounded like something I could use so I ordered one.
I purchased the switch at MotoLeather.com. It is officially called a "Honda VTX Retro Handlebar switch for National Cycle Light Bar".
I mounted it on the left side between my controls and GPS mount. It works like a charm and looks like it belongs there.