Jellyfish
Spock’s Ship, the Jellyfish, from the Star Trek reboot movie by JJ Abrams. It’s just over 100 studs long, and features no interior, although it is minifig scale. No, it does not rotate. The weight of the parts on the back are far too heavy to accommodate that. Also there are a total of 3 exposed studs on the entire model. See if you can find them.