Renewable energy
A 'Stirling' idea for charging your cell phone
...Phones, iPods, Android phones, and any device that uses a USB charger drawing 1000 mA or less, it's as simple as connecting the onE Puck to your device and setting your drink down.
From their Kickstarter page:
“Say you are out for a night at the bar and your phone battery dies. Rather than awkwardly moving to a...