The original designs of the Millennium Falcon was basically what we now know as the Rebel Blockade Runner, but with the current Falcon's cockpit for a nose. This version was slated to be Han Solo's ship for quite some time. The filming model was fully built, and blueprints exist for full scale shooting sets. But the flying saucer with mandibles we now know and love took its place. Below are some renders of what might have been, if that original version had made it into the final cut of the film.