Almost free energy at your home! April 27, 2010 Electronics / DIY electronics 99 223 8 come back 60 1 2 3 4 5 Similar workshops A simple plasma ball from a light bulb Probe indicator without batteries Money tree Gauss gan The easiest battery charger Automatically turn on and off from computer Simple do-it-yourself monitor backlight Free air conditioning USB charger for mobile phone Robot - Brush! DIY wooden flower shelf Paper squid A simple stand for a do-it-yourself grinder To comment Check the box: Submit