ok, i'm considering opening a business selling hiphop/punk stuff. basically, the city i live in has a strong underground culture (except graffiti, but i'm changeing that

)
i want to sell clothing and accesories.. stuff that will appreal to the hiphop/punk/hippie community.. i basically need ideas for things to carry in stock. anyone want to make some suggestions?
things i have in mind:
CLOTHING
t-shirts/hoodies
hats/beanies
custom graffiti clothing like tshitrs and hats
NICK_NACKS
pipes/bongs('cause drug parrophanalia sells)
belts
body jewlery
probably skateboard stuff
maybe paint/caps.. not a major selling point here though
i'll hopefully hold graffiti and breakdance competitions
ANY OTHER IDEAS?