Han Solo's ship, the Millennium Falcon, is arguably Star Wars' most famous creation that people don't want to have sex with (and if you disagree, try Googling "Ewok porn" and then get back to me).
"Did you hear that, Chewie? It sounded like millions of voices yelling out:
Eew, eew, there is no God, eew, eew!"
Hell, some might even argue that the spaceship is actually a character in its own regard, considering how it has its own backstory, and how you could never confuse it for any other vehicle out there. Unless of course you're talking about the insides of its cockpit. Then you could totally confuse it for the ship's real-life inspiration, the Boeing B-29 Superfortress.
Lucasfilm, Disney, Andrew Kalat
Not having done anything like Star Wars before, George Lucas admits that he had to watch hours of World War II footage to get a feeling for what a proper dogfight would look like. That's when he first encountered the B-29, a propeller-driven heavy bomber used during the end of World War II. Lucas loved the design so much that he decided to copy it (together with its greenhouse-windshield gun turrets) while coming up with the Falcon's cockpit. Later, Lucas even used a slowed-down recording of a P-51 Mustang fighter to simulate the flight sound of Solo's ride.