Maybe we can make it a SMNetwork project? I'm sure a lot of us have webcams and could do a few lines each...although that means someone will have to edit them together.
Some of my favorites:
"Please don't leave your half eaten ricola on the walls backstage"
"Here. Take my pencil."
And a few of my catchphrases that my last cast were so helpful to point out that I say constantly:
"It's on the callboard. Does no one read the callboard?!"
"I'm not your mother."
"That...that is an excellent question" (For all those things cast members ask you and you can't quite give a diplomatic answer)
"If you're late for places one more time, I will start without you." (Actually happened, twice.)