If you are talking about the Mickey head shaped ones with he big round clear balloon around it I believe $15 is right. We have one that is going on 25 days now and is just starting to go. We also have one that didn't last more than a few days (although perhaps ds, 2, chewing on the end of it had something to do with that?) I heard if you buy one and it deflates while you are still there they will replace it for you for free. I don't have personal experience with that, though.