Sarah's Earrings of Mind Control

The Diadem was given to Sarah as a gift from Sam after they became close friends during the musical, the Earrings were created by Sam's Grandmother and have been shown to increase the effect of the Imperio curse.

During the Battle of Addams Sarah uses these earrings to help her breaking into the base for the attack. After the musical was over, Sarah asked for the charm to be released so she could keep wearing them.