OK, on a serious note. Our son is now 28 and I remember how hard it was to find something for his 21st that would be a lasting reminder. He isn't a big jewelry wearer and he had enough cuff links passed down from his two Grandads to sink a battleship. Like Wayne our son always has his mobile with him so a buying him a wrist watch wasn't any good.
We eventually settled on a modern silver pocket watch and stand. It may sound a bit old fashioned but he uses it as a bed side time piece and on the occasions that he has to wear a formal suit he assures us that he enjoys the novelty of using it.
I have included links to the watch and stand we bought him and I can thoroughly recommend the maker Dalvy and Harrison & Simmonds as a supplier.
http://www.h-s.co.uk/pocket_watches/...ver_case_s7629
http://www.h-s.co.uk/pocket_watches/...et_watch_stand