I would like it if the glow in the dark material could be mixed into the button plastic. This way, you can offer a "cheap" alternative to having to modify the electronics and thus voiding the warranty. I would be interested in having the glow in the dark buttons placed in front of Ultra-violet "''blacklight" LEDs for really startling effects at night. (I am thinking of flaring the LED and then having afterglow effects, etc).

Calvin