I got some flannelette ones from target, they were the target brand. I think they came in a pack of 6, so I would buy at least 1.5 doz. You can always use them later to help boost the terry ones. You will need the pins with flannelette, the snappis don't stick to them, or you could use a tight cover, which I have done a few times, seem to hold well, as long as its tight