Bill,
Don't know if you have seen them, but someone had the small rings that went around the switches with either the title of the switch or the international symbols. May have seen them on a web site or sale, just can't remember which one it was. Either way if you find out who or what then maybe they can alter them to fit your needs. The demo stuff was used even on the road cars, but to me it was a shortcut that wasn't well thought out.
Bill