The main problem is of course what to get people. I remember the brother of the unibomber in the states, felt that giving him Conrad's "the Secret Agent" started him on the path to terrorism.
I almost bought a tin of Sauerkraut, but since I am only taking hand luggage. I couldn't face explaining to the security what the tin was for. I did see what I thought was the perfect gift. I saw two thin tall glasses. Perfect, I though two traditional German tall glasses and a couple of German beers from the local Tesco should do the trick. On a second look though the glasses looked liked vases.
On the bright side I did find something nice for me. In a bookshop I found a package containing a hip flask and a knife. Why the two things were in the same box, I don't know. I will look so cool, sipping water from a hip flask, rather than using one of those nasty plastic bottles. It ill be useful to stop bullets as well, just like what happens on TV.