We could have done the Were-Rabbit in CGI. But we chose not to because I find with traditional (stop-motion) techniques and clay there is a certain magic that happens whenever the frame is hand-manipulated. I just love clay; it's an expression.
We actually provided a clay bunny, and he was scanned into a computer, fingerprints and all, ... And then he was cloned many times so they could show them all floating around inside the glass chamber in slow motion.
The clay figures don't keep well. They do keep for a year or two, and then the clay cracks up and falls off the skeleton. I guess they could demand a facelift.