Actually I think there were a few. Balao in 72 scale. A few VIIC variants also in 72 scale having to do with specific boats. Less than a half dozen submarine subjects in various scales. There were a hell of a lot of cars, tanks, and planes of course. And there were more than a few SciFi subjects.
I saw the Goff Disney Nautilus among the candidates and I think it had over 1000 votes. But I wouldn't hold my breath for that one.