I Give Up

I can't get Knuckles to lay on his back long enough to change his diaper, so I just put his diaper on back to front. I could probably get him to lay on his back long enough to get a diaper on him if I used some duct tape, but even though duct tape is the Great American Adhesive, I don't know if that's legal. Also it would use up a lot of duct tape, and I think we're down to our last 2 or 3 rolls.