I had never made a cover for one of these before. It actually intimidated me at first. I used a chenille and an Amy Butler print (a favorite of the mommy's).
This turned out way better than I had imagined. I ended up making it kind of like a crib sheet. It's elastic around the bottom. That way the straps and the no-slip bottom are used. Also it will make it way easier to take off and wash.
I just put it back in the packaging it came in to take it back to the mommy.