It's a Metrocard not Metropass.
That is what they usually pick out of the hat after.
Usually, when they are sorting throw the money the got during the song and they comment about getting a metrocard. Princeton says something to the effect of " I'll take that." But, during the demise of the Mets I saw a preformance that had a very funny ad lib between princeton and Gary Colman.
Instad of the Metrocard it was a Mets ticket that resulted in the following adlib
Character who picks up ticket ( forgot who this usually is): Oh, And a Mets ticket.
Princeton: I'll take that
Gary: Why the hell would you want that?
Princton: free baseball ticket
Gary mumbles under his breath: stupid ass puppet doesn't know a thing about sports."
I mean yes, they do change the item around depending on where the show is playing. I have heard people say that they pulled out things like a ticket to the san Deigo Zoo. To a card that says " if your looking for a good time call..." when they were in Vegas.
"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