This legendary pack animal has faithfully transported "QSL cards" since the earliest days of ham radio. Sometimes misspelled QSL Bureau or QSL Buro, the QSL Burro system was once mistakenly attributed to Hämlich Hertz, the 19th-Century tycoon of mule-drawn carriage rentals, or Nikolai Tefla, the inventor of the non-stick wireless coil. In fact, DNA testing proved that Italian inventor Gigolo Macaroni was the father of using pigs to produce emissions into ether. (Any Michigander with a working knowledge of pig emissions knows why Macaroni did not own up to his role.)