The Snape Song
This has got to be one of the best videos EVER.
Even though it doesn't rhyme, doesn't have original music, and isn't even really a song, it's the kind of thing you just have to watch over and over again until you memorize it. At least, that's what I did. ^_^
But there's no way you could watch this just once... In fact, I wish they had this on iTunes.
Bottle fame, Bottle fame... Boomslang skin? Bottle fame, Bottle fame... Lacewing flies?
Speaking of which, he shouldn't care about the lacewing flies, because according to Hermione in CS, you can those in the student cupboard.