"THE PENGUIN IS DEAD!"
Folks familiar (and passionate) about the Penguin Drive-In changing ownership will want to sport this diddy in continued protest of the situation.
Two easy ways to do this costume.
The expensive way: Buy or rent a penguin suit. I'm sure you can find something at Party City or Morris Costumes. To portray the "is dead" effect, tape "X"s over an old pair of sunglasses. You may also want to carry around a cut-out of a jukebox.
The cheap way: The classic "penguin" suit is a tuxedo. If you don't have a tuxedo shirt, Michael's sells them with the bowtie for about $15. Black pants and a black jacket. Don't forget the sunglasses with "X"s, or you could even carry around a tombstone that says RIP Penguin, for added effect.
If you really want to bolster people's enthusiasm for the Plaza Midwood diner, carry around a basket of fried pickles.
THE DISCO CHICKEN
How to do this: Aluminum foil and lots of it.