Kitten lettering

http://www.youtube.com/watch?v=r3FG2hNrhVI

I watched the Puss in Boots animation way back in November whilst it was in the cinemas. This cat project of mine made me think back to that but directly the credits of the film where they cleverly spell out the cast with the forms of cats. I briefly tried doing this with cat doodles, but the desired effect was never found.