Share things he would do here. Take pics of the hangouts, get a coaster from a bar. :-) "I drank one for you" Give him something from home. Have everyone clip a bit of hair (small) and make a page "we are going bald waiting for you" there are many things you can do to not only make him feel great - but give him a piece of his life back when he is so far away and probably scared. :-) Nothing is better than a good laugh.