Voodoo doll

A voodoo doll is a nonliving representation of a living thing imbued with magical properties.

Abilities
Voodoo dolls are made from magic wax and require a piece of material worn or owned by the victim. Once made, any action done onto the doll or any physical condition experienced by the doll will reflect itself upon the actual being the doll represents. For example, if the doll's limbs are moved, the real person's limbs will move, and if the doll is put next to fire and melts, the actual person will begin to melt as well.

The doll appears to only work if a living being is holding it.

Appearances

 * Scooby-Doo, Where Are You!: 1.13: "Which Witch is Which"
 * The voodoo dolls were fake and just for show.
 * Scooby-Doo on Zombie Island