When I was a kid my dad worked as a night watchman for the movie Return of the Jedi part of which was filmed near my hometown. Towards the end of filming here they took a bunch of stuff to the dump and just threw it away! My dad grabbed a Prop pistol out of the trash and a few sets of rain gear that were emblazoned with the title Blue Harvest which was a cover up name for the film. My uncles worked there also and one of them got a Stormtrooper helmet.
Fast forward to about 8 or 10 years ago when a collector came to town asking about such items and my uncle sold him the helmet and a few other small items and my other uncle also sold some things as they both needed the money. The stormtrooper helmet sold for about $500 if I recall correctly.
Fast forward to this last year and a guy calls my dad to try and track down the helmet and in the discussion the prop pistol comes up as well which starts a bidding war because as soon as dad figured out it was worth $5000 sight unseen to this guy he researches and contacts other potential buyers. He finally accepted a bid of $17,000 for the pistol.
This is just a prop with no working or moving parts and made of resin, CRAZY AZZ COLLECTORS!
Side note my uncle that had the helmet called the collector about some other stuff and did what he shouldn't have and asked what the helmet was worth and the guy told him $60,000! He shoulda never asked!
Bill