Your garden-variety swan isn’t known for its charm — in fact, it can be downright prickly — but the pool swan has proven itself a different breed of bird altogether. With its classic good looks and buoyant personality, this giant, inflatable water toy has become the float of choice for the fashionable and famous. If its exploits over the past year are any indication, Summer 2015 is gearing up to be the season of the swan.