Omiyage, a gift for my host family

I'm trying to figure out what I should give my host family as a gift when I arrive.  I don't know anything about them yet, which makes it kind of hard to decide on anything.  I need something that is distinctly American.  I could go with food, but there's not much American food that isn't just borrowed from somewhere else, and what food there is wouldn't survive the trip.  I could get a decoration of some sort, like colonial-era glassware or something, but it would need to be small and I'd have to make sure to pack it extra carefully so it doesn't break.  Anyone have any ideas?  I'd appreciate some suggestions.