Electric Claw — Michael Dahl

Sarah receives a package in the mail from her recently deceased grandfather: a life-size robotic version of him! Sarah enjoys spending time with robo-grandpa, but her mom thinks the invention is creepy. One night while Sarah sleeps, her mom sends the robot to the scrap heap--leaving only one hand behind. Sarah holds on to it as a memento of her beloved grandfather--but like Sarah, the hand has problems letting go...