some people put LEDs in normal buttons to make glowing buttons.
I plan on getting the nintendo buttons, which are microswitch but use the button part of a leaf button. Leaf buttons are the only ones that are translucent.
Those buttons are hard to find though. I talkes to oscarcontrols and kelsey is looking into producing those. They are just punched sheet metal essentially. So we'll have to wait and see on those.
Until then I have mounted leds into my start buttons.