Give the director a Graveyard Bouquet.
When a theater production closes, it is considered good luck to give the director a bouquet of flowers stolen from a graveyard. This macabre symbolic gesture (theater folk love their symbolism) obviously denotes the end of a production (its death). Historically, actors did not make a lot of money, so one might assume that this was an inexpensive way to say thank you to their director while buttering him up for the next round of auditions.