From Etsy:
Now you can sew your very own Fatkitty! With this pattern, you can add to the massive litter of fatkitties that have been sewn by me over the last several years.
Check out my flickr photo set to see them! http://www.flickr.com/photos/merwing/sets/212834/
This pattern will give you instructions to make the fatkitty pictured, but remember, fatkitties like to be unique, so feel free to change the colors or design to make him your own!