Dr Filibuster's Fabulous Wet-Start, No-Heat Fireworks

Dr. Filibuster's Fabulous Wet-Start, No-Heat Fireworks are magical fireworks that are presumably set off with water.

Known Uses

 * Fred and George Weasley and Lee Jordan bought some at Gambol and Japes Wizarding Joke Shop in 1992.
 * Harry Potter later borrowed a firework from Fred and used it to explode Gregory Goyle's cauldron in Potions class. This created a distraction that allowed Hermione Granger to slip out of the room to get the boomslang skin that she required.
 * On the way to Hogwarts in 1994, Fred's trunk fell open, setting off a number of the Filibuster fireworks he'd packed. The Muggle taxi driver who was carrying the trunk was alarmed by the incident.