I have been doing this for over a year now with my cat food bags. almost every other one I make I give it away because everyone loves them. I stopped at a feed mill last week & told this guy working there what I do with the cat food bags & ask about buying some wmpty bags off of them. He looked diown his nose at me & informed me that it would not work. So I went to the one across the road & told the lady there what I wanted to do & she sold me a couple of bags. I am thinking about doing a quilt block & putting it on the out side.