CLAMP in Wonderland. Too bad a more recent (as in utilizing CCS, xxxHOLiC, TRC, Chobits, etc. characters) version has not been made. Love this video! But I'm not smart enough to know most of the series and characters illustrated. Note! A CLAMP in Wonderland 2 has been/is being made, featuring characters from CLAMP's 1995-2006 series, including: xxxHOLiC, Tsubasa Resevoir Chronicles, Card Captor Sakura <most of those I thought of above!>, Angelic Layer, CLOVER, and X, at least. It's supposed to be released in Japan this summer. Music is "Your Very Own Wonderland / Anata dake no Wonderland" performed by Ookawa Nanase. There is also a conclusion video ("part 2"), but it's incredibly boring. Even if there is an umbrella in it.