I just got mine in the mail for the Christmas party and the back just says the party date and age the ticket is for (age 10 plus or age 3-9). They say non-transferrable but with out names on the back, they don't really know who bought them. As long as you are using one for the appropriate age, they won't question it. They have no way of knowing it was for any specific person. When you put it thru the turnstyle, it will simply read on the screen adult or child
MNSSHP ticket. So don't worry
We used the extra day on a park hopper once from a ticket my grandmother had ~ she's in her 80's and had no intention of returning and gave the extra day on her ticket to my soon to be SIL. No one questioned it as there was no name on the ticket and it was simply for an adult. That's why they have the finger scanner's for the AP's ~ so that you can't do that. But for any tickets without a name and finger scanner requirement, they really have no way of knowing who originally bought the ticket.