The image was sketched freehand roughly based on a scene from the opening of the first episode of Baby Looney Tunes. In it Sylvester is running around on all fours chasing a ball of yarn. He's just so cute that way. *squee* They also had diapers at first so he's padded. As a stamp the image will be reversed so he'll look left-pawed but that's okay. I've actually put his butt up a little higher and made other adjustments after taking this picture. This was sketched on lightly sanded OZ Kut with an HB pencil then the lines and shades were darkened with a black Stabilo All pencil.
Update: Carve in progress after some modifications to the sketch. The new picture was taken under the lighted magnifier I use.
Update 2: I got a chance to do more carving this evening. It isn't going perfectly but I'm learning a bit about how to do a toony image. I chose Sylvester because he has both outlines and white lines across black. It's a little tricky to do but should come out nicely if I can pull it off. I should be finishing off the area with the hand and ball of yarn and test stamping before the next update.