Epiphany onE Puck Charge your phone with a drink

Resembling a steampunk-style drink coaster, the Epiphany onE Puck houses a tiny Stirling engine activated by the heating or cooling of air that, whether resting below a hot or cold beverage, produces enough energy to fully juice up a smartphone.

Simply place your hot or iced coffee/ tea/ Tang on the side designated for its temp (red is for warm, blue for cold), wait 30-60secs for the ready light to illuminate, connect your charger to its USB port, and let your mobile suck up the sweet, sweet power.