Abandoned pens and other such stationery stand a chance at purposeful usage, thanks to the Pen Printer. The device uses the ink from discarded pens to print on paper. The current tech may not support such an ambitious idea, but it’s worth the exploration,
Cool charger powered with solar energy. XDModo Solar Sunflower is a solar charger that collects sun’s energy through the solar panel and uses it to generate energy to charge your mobile phones. What a great alternative energy solution.