Smelly feet attack! need your advice girlz?

a guy at school has been giving me and my girl friends a tough time lately. we all have pretty potent feet and we are always active either dancing or playing tennis. not to mention our feet get very smelly at school. we want to make him smell our feet as a payback. but we have no idea how to go about doing it. any advice gals? im not asking a guy because they will prolly try to side with the guy in question.