Kill the Spare
Twitchy little ferret, aren't you, Malfoy
Try taking your egg for a bath
Canary Creams - seven Sickles each
Banner by the opaleye
Setting Off Fireworks in Potions Class
I second "CONSTANT VIGILANCE!" and "POTTER STINKS."
And here are some of my own ideas...
Goblet of Fire
Watching a man pick his nose through omnioculars
Aiden Lynch gets ploughed.
Dragon vs. Little Wooden Stick
Being Rescued by Dobby, Part 1
Fraternising with the enemy
Are you going to finish that Bouillabaisse?
Lost in a maze
Cedric stops being handsome and starts being dead
The man with red eyes and no nose
Saved by the deus ex machina
Order of the Phoenix
Throwing a tantrum
Getting killed by a curtain
Weasley is our King
Tom Riddle was one creepy kid...
Snape kills Dumbledore
Tim the Enchanter
Bowing To Buckbeak
Ultimate Cosmic Power
Getting Jolted Around On The Knight Bus
Ok, I think I'm going to close this now... just because you'd have to get 132456874653 posts to reach some of these and I don't want to give Carole a target (crazy girl!)
Thank you all for your brilliant suggestions. They will be appearing for you all soon.