I've got six 36"x66" International Dunnage inflatable dunnage bags. We occasionally get them on inbound truckloads. They are reusable and can be deflated and reinflated using a blower/air hose/vacuum exhaust. We have no use for them and they're taking up space but I'd hate to throw them away. It looks like they run $10-16 a piece.
If someone has a use for them, they're all yours gratis. I can deflate them and roll them up for shipment via USPS.
Maybe white trash pool toys?