If there's one thing every person reading this site should want resting on their office bookshelf, it's the actual prop gun blaster Luke Skywalker wielded in The Empire Strikes Back. The thing was even gifted to the original owner by Mark Hamill himself, which just adds to the cool factor.
Nate D. Sanders Fine Autographs & Memorabilia has the thing up at auction and it's expected to go way over $200,000. Get after it and good luck. We'd rather have this than the Mona Lisa, to be honest.