For the people who crochet, here's an easy and very useful item for shelters everywhere -- KITTY AFGHANS!
These are simply single Granny Squares, but made with 16-18 rows, not just 4 or 5. I used Lion Brand Yarn's "Tweed Stripes" which creates the variegated look, but you can use any worsted-weight, non-wool yarn in any color, make your own stripes, or make them in solid colors.
And finally, you can make these any size you want so they can be used for kittens, adult cats, puppies, adult dogs ...