Japanese company Luminlay developed these functional and cool-looking glow-in-the-dark guitar knobs, dubbed the Luminlay MA19s. These knobs will enable musicians to find their knobs and fine-tune their volume and other controls on stage before the spotlight hits as well as in between songs when the stage lights might go dim.
In strong light, the Luminlay MA19 knobs look like any regular old knob; however as the lights go down, the knobs give off an eerie blue or green glow that not only looks great but also helps musicians control the tone and mood of their sound in the dark.
The knobs come in black, nickel and gold versions and are designed to fit 6 mm pot shafts. They are available for around $18.