I had no pattern, I just guessed and trimmed and guessed and trimmed until it looked the way I wanted. This felt cat toy is basically three pieces, the two sides and the bottom. Plus the tail. I just did a simple whip stitch on all seams, french knots for eyes (I love french knots! I don't know why!), and I stuffed it full of polyfill and catnip. I also crudely whip stitched the ears on. This little guy is being sent off for Christmas, but I let my cat have a sniff to make sure it was cat-approved. From start to finish, even without a pattern, it took maybe a half hour to do.