Some of you may have seen the following item that I came across on the Rivco website. If not, it may be worth a search for the manufacturer to see if they could make it from a template supplied by someone.
GL18001
Illuminated Rider Decals with Brightness Control
Finally, see your controls at night! Illuminates the unlit text portion of your stock GL1800 rider controls. This material was first developed by NASA for their space program and now RIVCO brings it to you. Features paper-thin adjustable illuminated lighting decals, matching the stock text, symbols and blue color. NO disassembly of the switch housing required. Plugs into the existing handlebar wires, with NO cutting or splicing. Installs in 30 minutes and includes dimmer knob. While the 2004 and newer models come stock with lit handle bar controls, they are not nearly as bright and are not adjustable, making these a popular upgrade.
Look it up on the Rivco website to see a picture of it installed on a GL. Nice and neat illumination for someone that desires it.