Remote controlled boats are cool. Remote controlled battleships armed with CO2 powered cannons that shoot BBs and attempt to sink each other, that’s a whole new level of awesome. Meet the Western Warship Combat Club. These guys have the best RC hobby ever. As they describe themselves:
Never heard of robotic warship combat? We build 1/144 scale model warships (WWI and WWII vintages), use balsa wood for armor, arm them with CO2-powered cannons that fire BBs or ball bearings, and go to a lake and try to sink each other.
I must find a way to smuggle one of these into Legoland and initiate a tiny bombardment.

