The ones in the middle look like either:-
(a) watch chain fobs sold by various organisations to members or as souvenirs at exhibitions, concerts, other events, or at tourist locations, or
(b) genuine medals won at sports competitions or for achievement at school. The ones in the middle and to its upper left could depict footballs.
Such things are now collectors' items and regularly appear on auction sites. It might just be possible to identify the clearer ones. Knowing the area the lad came from could offer clues.