Comment by pfortuny
I am a civil servant (Spain), I cannot legally accept them.
But I have indeed been gifted a Christmas "basket" (with typical Christmas food) and from another student an amazon box with "serrano" produce. I could not refuse them (the first one because it was already brought to my office, the second one had no return address afaicr).
It was very very pleasing, of course. And neither was really expensive.
I think both students hit the exact level of compliment: singular but not extravagant.
ETA: thanks for the compliment.