The Marauders Map

"Messrs. Mooney, Wormtail, Padfoot, and Prongs
Purveyors of Aids to Magical Mischief-Makers
are proud to present
THE MARAUDER'S MAP"

"Mr. Mooney presents his compliments to Professor Snape and begs him to keep his abnormally large nose out of other people's business.
Mr. Prongs agrees with Mr. Mooney and would like to add that Professor Snape is an ugly git.
Mr. Padfoot would like to register his astonishment that an idiot like that ever became a Professor.
Mr. Wormtail bids Professor Snape good day, and advises him to wash his hair, the slime-ball."

"I solemnly swear that I am up to no good."