My favorite ones are as follows.
The King and I (most recent revival)
The Who's Tommy
Tick...Tick...Boom
The Company revival
Big (for sentimental reasons)
Beauty and The Beast closing playbill
The Les Miserables revival and Les Miserables closing night.
"If you try to shag my husband while I am still alive, I will shove the art of motorcycle maintenance up your rancid little Cu**. That's a good dear"
Tom Stoppard's Rock N Roll