Dave Grohl and band would most likely be very approachable and reasonable for a pinball project. I've listened to several interviews with them and they are very grounded considering there success. Who would have thought the drummer in Nirvana had so much talent.
A buddy of mine lived on the same street as Dave Grohls Mom in Va and everyone had gathered on the 4th of July for food/fireworks. Dave was helping light one of the fireworks when one burned a kid slightly. He felt so bad and made sure the kid was alright. After I heard that I was definitely a fan.