I'd do like those modellers did in the video someone posted a while back and rig the deck gun to shoot BBs.
I'd love to set that up, get a replica white Kaleun hat and sail that thing around the local park pond, shouting commands to my invisible crew in German, sinking kids toy boats and pelting ducks in the butt. I'd be the scourge of the high seas. Well...scourge of the park anyways.