There is an amphibious ATV from the 60's in a Canadian Movie listed on here and I am not sure is it would be permitted. A different model if the same vehicle was also used in a Three Stooges live action movie which plays before and after one of their Cartoons. I am not sure if that would be permitted either, both because of the ATV, and because the cartoon association, even though the vehicle is shown during the live action portion.