Would have to be an iconic band - Queen is an excellent choice.
Led Zeppelin would be a real winner - and if the rumors are true about a reform in 2014, then this is the logical choice.
I think the only other Band that Stern could look at would be Bon Jovi or Iron Maiden.
Led Zeppelin rumours have been flying around since 1981. They will never reform according to their press statement in 1980 and besides, Robert Plant's voice probably peaked in 1975. He is happy doing what he likes and is comfortable with.
A 4 December 1980 press statement stated that, "We wish it to be known that the loss of our dear friend, and the deep sense of undivided harmony felt by ourselves and our manager, have led us to decide that we could not continue as we were", and was simply signed "Led Zeppelin".
A Zeppelin pinball? You would need a mighty good ball to complete Kashmir or Stairway. Dazed and Confused? I have a bootleg version that goes for 35 minutes!
Zeppelin are very protective of their brand and material. The rights to create a pinball would probably add at least 2K per machine.
