Anything electrical that is… forum member Mr. Thumbs (his real identity remains shrouded in mystery) has created an Instructable showing how to flip a relay using Control. In the Instructable he’s using it to control turning a house lamp on and off, but you could use it to control anything that draws a similar amount of power. Or get a bigger relay and control whatever you want.

Thanks to Mr. Thumbs for taking the time to create this tutorial!