In a fashion show there was a dress that was said to be designed by CLAMP as Sakura's wedding dress, here's the link:
http://www.animenewsnetwork.com/interest/2011-12-24/clamp-card-captor-sakura-wedding-dress-walked-down-runway
In a picture it shows Sakura wearing it, picture related. I hope they'll release bigger and more pictures of Sakura wearing it.