What are your suggestions on this sculpture?

I'm doing a paper mache.... It's a cat.... It's suppose to represent me.........I imagined it like that...It's a black cat with one side representing the "real" me...Then the other side with a cracked theatre mask....Showing what people see me as.....

How can I make or buy a cracked theatre mask?

Just in case you may be questioning what I mean by a theatre mask: http://www.flickr.com/photos/28092868@N07/30988314...

(It's an idea of it....But I want the mask to be rounder...since the cat's face is rounder....)