In Japanese folklore, a yokai called a futakuchi-o
In Japanese folklore, a yokai called a futakuchi-onna uses this part of her body to feed her voracious second mouth. In Greek myth, Comaetho destroyed the magical version of this body part given to her father Pterelaus by Poseidon. The city of Megara was protected from invasion by its king's own example of a magical version of this body part. That king, who later transformed into a sea eagle and attacked his daughter Scylla after she betrayed him to King Minos, was named Nisus, who had a purple example of this body part. In Norse myth, Thor forced Loki to have Brokk and Sindri make a replacement version of this body part for Sif out of finely-wrought gold. For 10 points, name this body part which, for Stheno, Euryale, and Medusa, was made of snakes.
In Japanese folklore, a yokai called a futakuchi-onna uses this part of her body to feed her voracious second mouth.
the hair [or "a lock of hair" or "a head of hair" or equivalents]