Water toys

stylized, floating duck-shaped toy

type of model rocket using water as its reaction mass

type of toy gun designed to shoot water

classic science experiment demonstrating the Archimedes' principle and the ideal gas law

toy heat engine

type of mattress

balloon filled with water

inflatable water toy

large inflatable sphere that allows an occupant to traverse a water surface

sand coated with a hydrophobic compound

cylindrical piece of buoyant polyethylene foam, sometimes hollow

mock combat, often (but not necessarily) with water balloons