Gift ideas for host family in Spain?

Hola!! I am going to be traveling to Spain in a few weeks, and staying with a family while I am there. I want to bring them a gift from the United States, but I am not sure what a good gift idea is or what would be appreciated there. I want to bring something that they might not get on their own in Spain. I am traveling with only a carry-on bag, so I have to be able to fly with it. Does anyone have any suggestions or ideas? Thank you!!