Suggestions for small gift for bf's family?

I would l suggest something that represents your home country but also not something tacky or that they feel have to keep on show, just in case it wasn't their taste. Sounds like you are in UK so for example if in England some English china, not part of a set but something like a plate with separate compartments to put out nuts, dips etc on.Of it you were Scotland, some Scottish crystal gles. I am sure you get the idea. Have a good time.