Siren Pendants

Origin
In the universe of MP, the Sirens were three giant and beautiful hippocampi-like creatures capable of enchanting others with their voices. However, in order to maintain this power, they had to feed off of the negativity and distrust of others.

Effects
When worn, these pendants give the wearer(s) incredible singing voices, and allow them to generate negativity and control others with their music. When the pendants are fed enough negative energy, they will allow the wearers to "pony-up", gaining ears, a hair-extension "tail", and siren wings, as well as project an astral form of what they would look like as a siren. When removed or, as seen in the film, destroyed, the wearer's vocal chords will (temporarily) become warped, sounding cracked and off-key.