I stuff all my "micro" scraps and small batting scraps into a bin, when the bin gets full I sew up a bag and stuff it and give it to my animals as a bed. We have 3 dogs and 2 cats and they love those stuffy bags. Last one I did had a cat laying on it before I even stitched it shut, LOL.
So far I've filled 2 and am probably just about ready to do a 3rd. They're a real pain to wash though, they take FOREVER to dry. I think I'm going to have to start doing outer covers.