There's a clothing style that is pretty much all Japanese, and that is the Gothic & Lolita clothing. Lolita clothing is that which the women wear which makes them look like little children, albeit a lot fancier. Gothic is a style which, of course, is based on the goth style of clothing.
This book is filled with pictures of young Japanese dressed in both styles, walking around in some of the most outrageous, yet interesting, clothing possible.
The movie Kamikaze Girls (American title; Japanese title is Shimotsuma Monogatari, which translates roughly as the Story of Shimotsuma) shows a girl who is a follower of the Lolita fashion.
A lot of the clothes are, in my opinion, really beautiful.