Have you got old solar lights from the garden laying around? I know I have about 10 right now that look outdated and weathered. Well, did you know with a little thinking and a little solder here and there, you can create a powerful solar panel for pretty much free.
You can make this as big or as small as you like, the one in the photo above is a medium sized panel and is giving off 22.1 watts. Thats not bad from free garden lights, this could charge a 12v battery in no time.
I would ask family and friends to see if they had any going and get the wood from craigslist or somewhere. I can see this being a fantastic weekend project for you. I know for sure I want to do this. Check it out below: