I was at a seminar where the designer of the Delorean time machine was present... While they were reading his credits they said "And worked on Return of the Jedi" in the props department.
While discussing BTTF, he would talk about finding all kinds of weird greeblies and such for the Deloreans insides and controller...
I almost crapped my pants, and like a total nerdy fanboy, hunted him down after the talk with pics of the ROTJ Saber on my phone.
"You worked on Jedi? Can I bug you about something? What do you know about this saber? When was it used? What parts?"
He responded with
"I lit Vader's super star destroyer, and that's about it."
Then he mentioned a guy who may know.... "But I'm pretty sure he died..."
Ah well.