In the context of objects such as Zeus' master bolt or Poseidon's trident, the closest I could find was a pomegranate.
Both the pomograntet and the asphodel have been associated with Persephone as her symbols.
pomegranate
Here most common symbol is the Pomegranate.
A explanation of the changing seasons.
Persephone used a silver bow and arrow and often in her mothers steps(Demeter) used a staff
Symbol of authority or office.
The symbol for Tennessee Valley Authority in the NYSE is: TVC.
Persephone is often robed, holding sheafs of grain and a flaming torch. A flower that shows her as Queen of the Underworld is asphodel. Being a Queen, she had no need of a weapon.
Ares's symbol of authority is often depicted as a flaming torch or a javelin. These symbols represent his connection to war, violence, and power.
In my company it's a bowler hat with a glittery pink velvet band. No one contradicts the Hat. To my knowledge, there's no general symbol of authority and as such a symbol would have authority over me too, i really should know. Your question needs to be more specific.
Nymphs are mythological creatures often associated with various elements of nature. The symbol of authority for nymphs is often a Greek god such as Zeus.
Yes, Persephone is associated with the city of Eleusis in Greek mythology, where she was abducted by Hades and later became Queen of the Underworld. The Eleusinian Mysteries, celebrated in Eleusis, were centered around Persephone's story and her role as a symbol of death and rebirth.