Here is something that Mattel probably didn't want making the rounds. This prototype was found on eBay from a user in China. No doubt the Chinese production facility had a worker sneak some out and sold them to a lucky customer. While it isn't a painted piece, it does give us a look at the sculpt and what it will look like.
You can expect to start seeing these coming to stores in the Spring. If you just can't wait, do an eBay search and prepare to pay ridiculous prices for it.