Verified answer

Couldn't find 5 or 5.5 maybe 6 would be fine as well?

http://cgi.ebay.com/UGG-SILVER-Sequin-Sparkle-boot...

There are quite a few listings for these Uggs on eBay, I'd recommend going there:

http://shop.ebay.com/?_from=R40&_trksid=p5197.m570...

Good luck!

Well, first of all I hope these are for your girlfriend. Second, try Reed's or the Kavu store they usually have them. Hope this helps.