Amnesia orb

An amnesia orb was a “mystical sphere the size of a golf ball that disrupts the short-term memory of anyone who looks at it”.

At some point, Jenny Everywhere acquired one, which she placed in her closet. During their great cleaning-out of the closet and the many strange items therein, Jenny and Kim found the orb several times only to forget its existence and lose it again. Eventually, Jenny thought to wrap it in a T-shirt while she still had her eyes on it, allowing Kim to place it in an opaque, labeled box without being influenced by its memory-erasing powers. The box was then stacked atop that containing the Crown of the Vampire King. (PROSE: Cleaning Day)