Old Style Buttons with LEDS
Before having a 3D printer, I used to make my "korry like" buttons using microswitches, Kingbright DE/2ID type led bars and some small plexi plates working as support structures as you can see in this blog entry and photos. Note that these buttons are dated back to 2004-2005 , so lots have changed since then. You may see how I do my korry buttons and find a comprehensive tutorial via this link
All buttons are hooked on the opencockpits I/O boards and coded via SIOC to speak with FSUIPC of Prepar3D. Too much fun. Enjoy my website.