So I've been trying to give DS lots of airtime to help his diaper rash heal, usually during tummy time. At any given time he has some non-CD safe product on him, so I've been putting him down on top of a couple of prefolds but with some paper towels on top to protect the diapers. But he is getting squirmier every day and kicking all this absorbent stuff out of the way. Also if I flip him on his back, I'm not really sure how to avoid getting a little pee fountain other than putting a sposie on him loosely, which he inevitably kicks off.
How do you catch the pee/poop while LO is airing things out?