It's nearly Halloween, so that means it's time for people to decorate their houses with ghoulish displays of terrifying monsters or just put some pumpkins and other assorted gourds out on the lawn. If you are of the mind that your house should freak out as many neighborhood children as possible, you might want to take a look at Alton Porter's creation— a remote-controlled flying ghost. Aside from a quadcopter, it's actually pretty easy to construct. Porter took his own quadcopter; added some white fabric, a skull, and red LEDs; and voilà: a ghost able to sneak up on targets with the push of a button.Just think of the potential terror this thing could inflict. Heck, you could even take it for a walk — or float, so to speak. People on YouTube are huge fans of the video, with Porter himself writing, "Can't wait for Halloween."