Okay, so here's a something-in-a-bottle project we weren't expecting to see. It's a solar charger in a bottle. And it's a DIY project. Which means... we like it.
This project uses the mini solar cells devices by Shawn Frayne and Alex Hornstein as well as the solar-on-the-back-of-a-card trick we learned from them awhile back. Now, you're adding in a glass bottle. The purpose? To have fun, as well as to make a protective case for your solar charger, I guess.
This Instructable tells you everything you need to know to produce it. In fact, here's a speedy video that gives you all the steps:
Plus you get to turn a bottle cap into a USB connector... not something you get to do every day!
Try it and tell us what you think of the project!