Peter Pettigrew's silver hand

The silver hand was presented to Peter Pettigrew from Lord Voldemortat the end of the 1994-1995 school year.

Creation
The potion which allowed Lord Voldemort to return needed three important ingredients being the blood of an enemy, bone of a father and flesh of a servant. Pettigrew chopped his hand off in order to supply for the last ingredient.

When Voldemort returned, Pettigrew begged for a new hand. His request was honoured and Pettigrew was presented with a robust silver hand that was unyielding to a command. Pettigrew was enormously grateful.

Betrayal
During Harry Potter's hunt for horcruxes, he alongside Hermione Granger and Ronald Weasley were captured and imprisoned at Malfoy Manor, Death Eater headquarters at the time. Following a disturbance (which was Dobby) disapparating with other prisoners, Pettigrew was ordered to investigate. As he went down the stairs, wandless Harry and Ron tackled him taking his Wand. Pettigrew made an attempt to strangle Harry using the silver hand. However, Harry reminded Pettigrew of saving his life in Harry Potter and the Prisoner of Azkaban. The hand released Harry and turned against his owner. the boys watched Pettigrew turn blue until he was dead.