Brian Ashcraft sez, "A Japanese art student named Mayuka Nakamura created 'sushi warships' based on famous Japanese warships of the past. In Japanese, ikura is often served as 'gunkan maki', which means 'battleship roll sushi'. Nakamura took that imagery and went one step further by creating sushi that actually looked like real battleships."
Imperial Warships Made from Sushi Will Make You Fat
(Thanks, Brian!)