Two of my close friends were sub sailors in the 1980s-90s, so when i spotted a box of these at the surplus shop, I took picturers and sent them. One friend was excited to see it. Still have not heard from the other yet. So I grabbed three of them, one for each of us. And so I've started the Christmas shopping way earlier than I have ever done before. Figure I'll gag gift them by sticking some odds and ends in them. Some old socks, maybe a bra, and plastic fish. Any old submariners here that could clue me in on something a fellow sub sailor would get a laugh out of? Anyway, it's an interesting and probably useful item, and the first sub specific item in the collection.