A Diamond of course

Before Hilda could bring out the prize, she stopped and said, "Oh, I forgot. Remember not to look directly at it, dearie. If you do, you will be enslaved. It might be especially hard for you."

"Alright, what is it?" said the blond hair queen, as her Aunt pulled out a large blue gemstone on a golden chain with a ring of diamonds around it. She wanted to look at it, but heeded the warning knowing Hilda had been known to do weird things. She asked, "What is it?"

"A form of the Philosopher's Stone founded by Simon Charcot. Able to transmute the mind of a freeman into a ****, from his notes. Willing to do anything for the wearer. A unique trait of the magic makes the wearer immune to this power. I am not sure if it works through television or not. That might need testing." said Hilda as she replaced the new necklace with the magic stone on Marsha's neck.

"Anyone looking at this gem will becoming my complete ****... Perfect. Perfectly flawless, my dear." Said Marsha as she turned to a nearby mirror to observe the stone. She placed a finger to her lips in thought, wondering how to use the stone. Then she smiled as she said, "I know the perfect way to use it. If it works."