This is a basic little cowl that you can probably finish without staying up all night. I striped two colors of leftover madelinetosh tosh merino, but you can do whatever you want. The yardages are extremely estimated, so you have room to modify. Just be sure to use an even number of stitches divisible by 4 (for the 2x2 rib section to work out evenly).
If you can get your cat to model it, all the better!