The baby turned into a badger and started chewing on her crib when she got teeth. It's a mini crib, and the rail in question is thick and round, so the plastic protector things wouldn't work. On a friend's suggestion, I simply took a length of fleece, about eight inches wide (from my mother's sewing room trash can, actually - left over from making a sleep sack for my upcoming Boston nephew), snipped it all along, and tied it around the rail. Cute!
(And yes, that is a sleeping baby in the photo - took a big risk snapping that picture!)