Related anecdote: When I worked an offshore rotation with people from all over the world, I made an effort to bring candy that I'd never seen outside of Scandinavia. It was always amusing to see people sampling candy I liked when they weren't used to the ammonium chloride branch of flavors.
And once I brought this:
Everybody who weren't Norwegian, Swedish, or Finnish (sadly we had no Danes on board) absolutely hated it. Especially the Americans and Brits.
Everyone except Mario, that is; a Croatian geophysicist. He loved them. His voice still lives rent free in my head over ten years later, saying "Sweet candy is for kids"
A few trips later I brought one of my favorites for basically the same result, but this time with Jim (from Illinois, iirc) complaining that it made his mouth physically hurt:
Mario loved that one even More.
The only thing everyone on board liked was the obscene amount of chocolate my navigator brought every trip.
But to answer the question: Twizzlers. I bought some when visiting the US a couple of years ago. It tasted like oily sweetener (as in, clearly not actual sugar). That's when I learned that American and European wine gum are flavored very differently.
Footnote: Durian and durian chocolate is quite alright once you get used to the slight farty smell from each packet you open.