Recently I designed light saber-style lighted flippers for my Star Wars Data East for a fun effect. I think they will work on Stern's pinball machine also, I am planning to test that out. They install with no soldering fairly easily and I might make up some kits if anyone is interested. I worked hard to make the fitting, effect and brightness level to match seamlessly with the game.
Here's a photo and I posted videos of game play in another thread:
https://pinside.com/pinball/forum/topic/star-wars-light-saber-style-flippers
SW Flippers (resized).jpg