In a fit of optimism we bought those never-expire tickets during a trip many years ago; ten days each of WDW admissions, and 10 extras (waterparks, etc.). On the trip with me was dh, ds, and 2 dgks. Well, dh, ds and I have used up our tickets, but we actually never got around to taking those 2 dgks again, so their tickets have just sat there in the drawer. They were child tickets. Now those dgks are 15 and 13, and we'd like to take them again. Is there a way to trade in their tickets and upgrade them to adult ones, which they'd need now? Will we need to also upgrade all 10 extra tickets, which we'll probably never use? Has anyone solved this kind of challenge before? Thanks!