Instructables user cbaabc73 came up with a cheap and easy way to turn off outlets when you aren't using them. He built it after noticing his wife kept leaving the curling iron plugged, which can be extremely dangerous. This DIY project takes only basic tools without the use of soldering.
From the submitter:
Bagger broke? There, I fixed it. This leaf scoop solves the problem with leaves piling up in front of the mower deck and pushes the bulk to the curb. Though it will shove your leaves to the curb, you don't want to use this on a busy road because you will certainly get a few strange looks.
Zapata Racing just released the Flyboard, a water-powered jet pack available to the public. The Flyboard gets it propulsion from a jet ski idling nearby; its hose forces water to shoot out of the user's feet. Not as cool as a the real deal the public is waiting on, but I guess this is a happy medium for now.