A game of cardboard ships and water balloon munitions.

The Battle of the Cardboard Clads recreates the historic Battle of Hampton Roads, in which the naval ironclads the Monitor and the Merrimack fought each other to a standstill. Now, players have the chance to construct their own “seagoing” vessels out of cardboard sheets and tape, then experience the ship-rattling chaos of head-to-head water balloon bombardment. The game was run as part of Field Trip Day in Greenpoint, Brooklyn, just blocks from where the original Monitor was built.