It's late. I need to be in bed. But I've been meaning to start this thread for over two weeks now and I keep forgetting to.

Are there any plural forms of English nouns that you find interesting or noteworthy? Or perhaps just ones that you have to give yourself a mental nudge to get the forms right?

Linguistics aside, I think it's funny to see that our 'man', singular, becomes 'men', plural. Not so hard. But what is funnier is then we have the singular 'specimen' but the plural 'specimens.' Again, Faldage & gang, this is funny to me on a superficial level. And I imagine that it will be fun to take a look at an interesting working list with my kids this fall.

Do any of you have some interesting plural forms that you could note here?

If you've already done this thread way back when, please let me know and I'll delete this one and look elsewhere. But I really would like to know some of the unusual plural forms you've found interesting--on that superficial level.