What gift should I give to my directors?

Every year, at our final performance, we give our directors a gift to show our appreciation for their hard work. This year I was picked to be the one to choose the gift for them. Usually it has something to do with the musical we did that year (example: for Seussical, we gave them a book with all of Dr. Seuss' stories in them, that the entire cast signed), but it doesn't have to be. This year we are doing Meet Me in St. Louis, and I can't really think of what to give them. I need gift ideas for both guys and girls. Any ideas?