Update (Aug 15, 2009): Roiworld Korea has re-branded to Tiniya, while the original Roiworld will become the international site. Tiniya currently doesn’t allow us to play from outside of South Korea. The only way I could think of is to use a South Korean proxy. Here’s a list of proxies for you to try. And here’s the eHow article on proxies, if you’re not sure how to use one.
Roiworld is a Korean site where girls (and women) can dress dolls up, put make-up on them, takes quizzes etc. What sets it apart from all those doll sites is that it’s very fashion-centric. It’s regularly updated with the latest (Korean) fashion. There are over 100 dolls, each with multiple outfits, so you can be sure to find your style.
Instructions for Non-Korean people: No registration is required. Just go to Roiworld Fashion and click on the desired tab which I roughly translated on black below.
Here are some dolls I made of myself a while back. Yes, I do actually dress like that. Say what you want.