There is a reference to StrawberryMnM's fanfic Things the Acolytes Shall Not Do. You should go check it out. It's very funny.

It was a normal day in the Acolyte base. John was burning the evil mini marshmallow that were in cahoots with the man eating squirrels, Piotr was off painting a mural outside, Victor was sleeping and Remy was watching his favorite show ever. The many uses of cayenne pepper. Yes it was just your average day with them. That is until old Magsy had to ruin it.

"All Acolytes report my office!" Magneto yelled over his intercom, "Now!"

They all stopped what they were doing and with a heavy heart filed through the scorched hallways, courtesy of Pyro, and towards the dreaded room at the end of the long dark passageway. Bucket Head's office.

"You bellowed." John stated as soon as he slammed the door behind him.

"Don't do that."

John pouted but soon got over it as he made a small bird out of fire. Which then caught Sabretooth on fire, who launched himself of John, who ducked and Sabretooth hit Remy instead, who then charged a card but it hit Piotr, who managed to switch to his metal self just in time which made a dent in the floor and by this time Magneto's face was purple and etched with rage.

"I put up a list of rules and I expected them to be followed. You give me you lighter." His voice was surprisingly calm and that alone scared the crap out of them. So with a little effort from his friends and the use of Mag's powers the lighter was confiscated.

"Now since my rules have been broken I have decided upon a suitable punishment. You will wear these and you will go to the Brother Hood house and make sure Raven sees. Any questions?"

At that John raised his hand and waved it around in the air before shouting out, "Can I set Toad on fire?"

"What? NO! And don't forget to give Raven this."

Remy grabbed the paper from his hand before reading it aloud," On the first day of Christmas my true love gave to me four calling birds."

"But those aren't bird suits." Piotr pointed out, instantly figuring out his scheme.

"Get out!" Magneto howled while he threw the outfits at them as the hurried through the door.

"His face matched his cape." John hooted as he continued to run. Well it was more of a fast skip.

*Line break*

"How many times have I told you to stop being so loud?" Mystique roared as the sound of Toad shrieking pierced the air. She huffed in frustration and walked over to the window when the cries didn't die down. What she saw shocked her to the very core. For out there on her lawn were Magneto's Acolytes wearing Daffy the Duck outfits along with the words ON THE FIRST DAY OF CHRISTMAS MY TRUE LOVE GAVE TO ME FOUR CALLING BIRDS burning the grass and a flaming Toad rolling around.

"You'd better get that fire out or I will come out there and hurt you all!" She yelled out after she pulled open the window.

It was then that the four of them broke out into a barber's quartet, except Sabretooth didn't really sing he just growled occasionally.

"Mystique, Magsy is cruel

We think you're a fool

Can't you seeee

He's crazyyy

Break up with him don't you know

Crushing his heart is the way to go-o"

"You bumbling idiots what do you think you're doing!" Magneto shouted as he flew across the lawn. All four of the somewhat insane group yelped as they began to run.

"This is fun!" John laughed as he hopped on the back of Piotr's motorcycle. Piotr shook his head and mumbled beneath his breath, "We are dead when he gets back to the base."