Here is a light switch that you can turn on and off by simply swiping your hands through the air. The Flick smart light switch lets you control your lights from anywhere in the world. It has a LED light that helps you find the switch in the dark. Flick is capable of sensing motion within 4″ of switch. You can customize its color and use it in your smart home to control your lights more easily. You can find about this product on Quirky.