"Here Mr. Frodo, you better eat something." a concerned Sam said, holding out a piece of bread.
"I'm not Frodo, I'm Boromir, trying to steal the Ring," said Boromir, tearing off a mask.
"Well, I'm not really Samwise," retorted 'Sam', "I'm Aragorn, trying to keep the Ring from the likes of YOU!'
A voice from afar cried out suddenly, saying "And I'm not really the Eye, I'm the Arm!"
"Well, I'm not really dead!" exclaimed Gandalf as he emerged from some bushes.
...
"Wait."
...
"If YOUR Gandalf, then who's THAT?" questioned Boromir, gesturing to the now smiling Gandalf standing next to them.
The smiling Gandalf then ripped off a mask of his own...
A REAL GORILLA!