Among the many items from the Harry Potter world that should exist in real life, the Weasley family clock, which tracks the whereabouts of each family member, has always been a fan favorite. Imitators have created clocks that bear a resemblance, yet fail to capture the true glory of the clock. Finally, however, a muggle has harnessed modern technology (using phone data, according to Nerd Approved) to create a working version of the slightly creepy clock.