The other night there was a power outage in our area, so naturally all of the flashlights are brought out so everyone is able to see. There have been these crank flashlight hanging around for years, and I actually cannot remember the last time they held a charge. They would light up when you crank them, but the batteries were long gone, or so I thought.
Had all the materials laying around and had a bit of time so I decided to make an 3x3x3 LED cube. Its something I have been meaning to do for a while. Eventually I will move up to 8x8x8 or something huge and more time consuming. For now this is good enough.