Here is another device in my a series I am calling "Enigma Gadgets," several of which I have posted information about here before. It's a handheld interactive device that responds to tilt and acceleration. Eight relays around the perimeter of the device are there just for the clicking noise they make, to create the illusion that something is moving or spinning inside. An accelerometer feeds data about tilt and movement to an Arduino program that turns the relays on and off. The clicking animation effect is reinforced by red and blue light-emitting diodes that echo the spatial effect of the sound. It is labeled "Standard Device" for to heighten the sense of enigma.