Great thread - thank you for starting it.
We have:
A lot of cut up fruit (apples, pears);
Go Go Yogurt (sugary, but good enough)
Pirate Bootie (empty calories, but my kids love them and I compared a bunch of Costco things and included that this was at least the best of them all)
Nuts - my DD2 loves almonds; my DD1 loves pistachios
Orange and yellow pepper
cucumbers
celery with peanut butter
cheese stick
hummus and pretzels used to be a big hit, but both my DDs hit a wall and they have no interest in it anymore...
Dried seaweed that are so popular now. I have looked it over and don't really get it - it's really salty and doesn't seem to have any nutrients so I'm not sure why they are so popular... but I do give them to my kids.
I try to give dry fruit, like dried apple (not brittle dry, but more like moist cut up ones - I'm not explaining this well) - my kids will take it, but don't love it.
Hot cocoa, like another poster said! That's really my concession to every snow day.
I am trying not to give them sweet snacks - it doesn't always work. I find that if I give them sweet snacks, like oreos, they are just wired for more sweets for the rest of the day and I have to keep them from overtaking the kitchen for more sweets...
Anyway, I don't have enough variety so am interested in hearing more ideas!