The Tapper Foot Switch® from Brookstone is an extension cord with a built-in foot-operated switch. With it, you can turn electrical units on and off by tapping your foot on the switch. This device should be used only with light-duty electrical appliances such as lamps and fans.
Another safety tool is the Easy Off® Power Control from ReiTech. It attaches to a power tool for emergency stops and provides an easy way to turn off a power machine when both hands are occupied. The user knocks the power control with a knee or foot to quickly turn off the tool.