Just to add (redundantly perhaps) that the "special kitten" is special because of the costume and not because of the traits it will show. It will look different from any of the breeds you see on the breeds page. Under the costume it will have "regular" features and traits, but that's not why it's special.
Here's photo from the KC Flickr pool of a special baby:
http://farm9.staticflickr.com/8350/81963...bf0529.jpg The parents are two Mummy Mia kitties (if I remember right), and the special baby looks like this. What you see is just a costume, just like in the parents.