This is applicable to others in the OT, but mostly to ARH. Add as many Batman references as possible. For instance, Luke could have Joker dialogue from Batman: The Animated Series, and Biggs, Porkins, and Lando could borrow lines from Batman 1989 and their respective actors. For instance, Lando could easily say something like “We have enough problems in this city without having to worry about ghosts and goblins.” Maybe that’d go best after Han asks, “Aren’t you worried about the Empire finding out about this…shut you down?”