Fanged Frisbees

• Type: Magical Joke Product, Banned Item
• Owners: Fred Weasley and George Weasley (as inventory), Ron Weasley
• Maker: Weasleys' Wizard Wheezes

A Fanged Frisbee is a magical flying disc, similar in shape and function to its Muggle counterpart. Its defining characteristic is an enchantment that gives it an aggressive, predatory nature, causing it to “snarl” and attempt to bite people and objects. While the novels do not provide a detailed visual description, it is implied they are equipped with magical fangs that can “nip” and “gnaw.” In Harry Potter and the Half-Blood Prince, one is described as snarling as it flies through the air.

The primary function of a Fanged Frisbee is to be thrown for amusement, but with the added magical property of actively trying to bite whatever it comes near. The enchantment gives the object a rudimentary level of aggression. They are capable of sustained gnawing, as demonstrated when Ron Weasley threw one into a tapestry in the hospital wing, where it became stuck and began chewing the threads. The intensity of the biting enchantment can be calibrated; early prototypes developed by Fred Weasley and George Weasley were described as “a bit nippy,” suggesting a process of refinement was necessary. Due to their potential to cause injury, Fanged Frisbees were included on Argus Filch's long list of items banned at Hogwarts School of Witchcraft and Wizardry.

Fanged Frisbees existed as a known magical object prior to the Weasley twins' commercial production, as they were already on the Hogwarts banned list by Harry Potter's fourth year. During their final year at Hogwarts, Fred Weasley and George Weasley began developing their own version of the Fanged Frisbee as part of their burgeoning joke shop enterprise. They were seen testing their creations in the Gryffindor Common Room. After leaving school, they perfected the product and sold it as one of the premier items at their successful shop, Weasleys' Wizard Wheezes, located at Number 93, Diagon Alley.

Fanged Frisbees serve primarily to characterize the inventive and mischievous nature of the Weasley twins, representing their talent for creating complex magical joke items. Their inclusion on Argus Filch's list of contraband highlights the constant tension between student pranks and school authority. The commercial success of the Fanged Frisbee at Weasleys' Wizard Wheezes is a key indicator of the twins' transition from school pranksters to accomplished entrepreneurs. On a more personal level, a Fanged Frisbee is used by Ron Weasley in Harry Potter and the Half-Blood Prince to express his frustration over his sister Ginny Weasley's relationship with Dean Thomas, providing a moment of comic relief while underscoring his emotional state.

• In the film adaptation of Harry Potter and the Half-Blood Prince, Fanged Frisbees are prominently featured in Weasleys' Wizard Wheezes. In one scene, a young girl picks one up and it promptly bites her arm before flying away, visually demonstrating their aggressive nature (film).
• Fanged Frisbees also appear as collectible items or interactive objects in several Harry Potter video games, including the adaptation of Harry Potter and the Half-Blood Prince (video game).