Just good business
Don't let Disney in on it. They'll spend $12M on N-passes then claim they have absolute copyright for eternity.
Just write into the contract they do not actually own the actual pass, but a temporary license for a single use that expires on use or if they attempt to resell, bypass, alter or duplicate the licence in any way.
"As one dollar in the N-jar rings, So one white dude from racist-shame-jail springs."