Lots of Nightmare Before Christmas accessories (pens, notebooks, little keychain-like-things to attach to your tiny cell phone) I also saw a few military uniforms, and I think that the Japanese just have a taste for uniforms in general
Crosses used as accessories, both right side up and upside down. A lot of girls trying to look younger, little frilly dresses, teddy bears, etc.
As far as the scene goes, I don’t think there’s very much in the way of Goth clubs. All the Goths in Tokyo seem to just get really really dressed up on Sundays, and hang out near Yoyogi Park all day. Then they mostly stand around, socialize and pose for photographs taken by very normal looking middle-aged Japanese men. There seem to be very distinct social cliques, all the Goths standing around seemed to form small groups, and there was not much traffic between groups.