Weasleys' Wildfire Whiz-bangs

• Type: Magical Item (Joke Product, Enchanted Fireworks)
• Owners: Fred Weasley and George Weasley
• Maker: Fred Weasley and George Weasley

Weasleys' Wildfire Whiz-bangs are a line of spectacular, enchanted fireworks created and sold by Weasleys' Wizarding Wheezes. They are far more advanced than typical Muggle or basic magical fireworks, possessing their own rudimentary intelligence and a remarkable resistance to magical removal. They were sold in two varieties:

• Basic Blazes: A standard box of enchanted fireworks.
• Deluxe Detonations: A more expensive and presumably more spectacular version.

When set off, the Whiz-bangs unleash a dazzling and chaotic display. They launch rockets that are described as long and orange, or bright pink. These rockets transform into a variety of magical creatures made of fire and sparks, including:

• A massive, fire-breathing dragon.
• A flight of glittering, venomous-looking bats.
• A flock of silver stars that flew around the room.
• A Catherine wheel that evolved into a fiery, grunting pig that charged through the area.

These enchanted creatures are solid enough to interact with their environment, leaving scorch marks on walls, chasing individuals like Pansy Parkinson, and even dropping sparking dung.

The primary purpose of Weasleys' Wildfire Whiz-bangs is to create a magnificent and enduring diversion. Their most significant magical property is their extreme resilience to standard magical countermeasures. Fred Weasley and George Weasley enchanted them specifically to defy authority figures attempting to clean them up.

• Resistance to Spells: Standard removal spells are ineffective and often counter-productive. The Vanishing Spell (Evanesco) causes a Whiz-bang to multiply by ten. A Stunning Spell causes it to explode with much greater force.
• Self-Perpetuation: Once ignited, the fireworks can continue their chaotic display for an extended period without further intervention. The fiery creatures they create act independently, running amok and adding to the disruption.
• Removal: Eventually, Professor Flitwick was able to remove the majority of the fireworks, presumably with a highly advanced or specific Charm. However, he deliberately left one charred patch on the ceiling, enchanted to display the message “A Weasley is Our King,” and kept a single silver star firework as a memento, admiring the “really good bit of magic” involved in its creation.

The Whiz-bangs were developed by Fred and George as part of their burgeoning joke-shop enterprise while they were still students at Hogwarts. They began selling them via owl order during their seventh year. Their most famous use occurred in Harry Potter and the Order of the Phoenix. As their final act of rebellion against the oppressive regime of Hogwarts High Inquisitor Dolores Umbridge, the twins set off a massive barrage of Whiz-bangs in the Entrance Hall. This created a swamp in one corridor and filled the school with explosions and rogue fiery creatures, causing pandemonium. The twins used the distraction to make a grand escape from Hogwarts on their Cleansweep Fives, becoming school legends in the process. Following this dramatic product launch, Weasleys' Wildfire Whiz-bangs became a popular and presumably profitable item sold at their successful shop at Number 93, Diagon Alley.

In Harry Potter and the Order of the Phoenix, the Wildfire Whiz-bangs serve as a key symbol of creative and joyful rebellion against tyranny. Their deployment was not merely a prank, but a calculated act of defiance that undermined Dolores Umbridge's authority and inspired the student body. The chaos provided a critical diversion that allowed Harry Potter to use the Floo Network in Umbridge's office to try and contact Sirius Black. The event also served as the ultimate proof of the twins' genius in magical invention, earning them the respect of even their teachers and securing their legacy at Hogwarts.

• In the film adaptation of Harry Potter and the Order of the Phoenix, the Whiz-bangs' display is highly stylized. It culminates in a massive, fiery 'W' that forms in the sky above the Great Hall before exploding, a visual element not present in the book (film).