If you've got a kid who loves to tour around Boston in one of those floating WWII 2.5-ton six-wheel amphibious trucks and you couldn't get enough of the corny jokes, random historical facts, and dipping in and out of the Charles river, then do we have a shirt for them! We've pushed this pun to the limit, with an illustration with so many of those flying feather dusters, their driving the vehicle down the river itself!