Porcupine quills were used as an ingredient in the Cure for Boils. They could also be used to make the Porcupine Robe, a special type of robe, which protected the wearer by hurting anyone who tried to attack them.
- Harry Potter and the Philosopher's Stone (film) (Appears on product label)
- Harry Potter and the Philosopher's Stone (Porcupine quills mentioned)
- Harry Potter Trading Card Game