Got into flight sims at some point and decided to build a simple button box with the very basics. It's intended mostly for the AV8B harrier, but can be bound to any plane or any sim. Letters are laser engraved on translucent white acrylic that i painted in black beforehand. There are green LEDs behind the panel that backlight the thing. (not bright enough though).
Black acrylic looks nice but you won't be able to backlight anything. What i like with black paint over white acrylic is with a very light engraving setting, the laser just vaporises the paint and shows the white acrylic below