Popular Science has a cool photo feature of “Green Goods”–or at least a bunch of cool gizmos with some kind of green angle.
One example is the rechargeable battery-powered lawnmower here. It’s hard to say how green that is (although the lawn certainly is), but it’s pretty cool nonetheless.
Another clever thing is the Nokia 1650, which reminds you to unplug the charger every time you unplug the phone. It’s something Greenbang certainly could use.