Puck was a character in William Shakespeare's play A Midsummer Night's Dream, also known as Robin Goodfellow. A bit of a troublemaker in the play, he puts love-in-idleness juice on the eyes of Bottom[?] and then sticks an ass's head on him. He also sticks love-in-idleness in the eyes of the lovers.
... inside it, except for a small round opening on top of it, which is where you can manually start the gyroscope. Once the gyro is spinning, tipping the device will ...