My kids had them last month on the Wonder, the one with Captain Mickey and the year. My youngest is 8 and never took it off. My oldest is that weird age (11) that he can go to both oceaneers and Edge. We asked them not to put on the lock since he said he did not want to wear it at Edge. They said they could not do that. The did however agree to make it really loose so he could wiggle it off his wrist. If you were going to put on a cover or decorations, you would probably want to have that with you when you checked in your kids and do it before the lock goes on. We were also told that you can reuse them on future cruises if you decide to keep them.