This isn't the only device that incorporates human gesture as a control mechanism. DJI's Spark drone can be directed with arm movement and a recent Samsung patent shows a drone that can track users' eyes, heads and hands and can be controlled through gesture.

Amazon's patent says the UAV could be loaded up with light sensors and cameras, auditory sensors and output devices like speakers or a laser projector. Of course, as is always the case with these things, there's no guarantee this device will ever see the light of day. There are plenty of patent designs that have never come to fruition. Some other recent Amazon patents include a mirror that can virtually dress you and a wristband that tracks warehouse workers' hand movements.