So here is what you need.
- Two silver coins (quarters will work)
- A paper clip
- A small piece of paper
- Your phone's USB charging cable
- Your cell phone
The way it works is that your body's electricity is stored in the DIY capacitor and the electricity is sent through the USB cable to the cell phone to charge it. The bad part is that you have to hold the capacitor elements for your body's electricity to charge the phone. The two coins act as two plates of the DIY capacitor while the air gap and paper act as the insulator.