This guide shows how to build a rechargable LED lantern that is virtually indestructable, charges wirelessly, and is very cheap.
This project was featured on Designnews.com. Check it out at http://www.designnews.com/author.asp?sectionid=1362&docid=2
The original LED lanterns were featured in MAKE: Magazine, issue 30. When I first saw the article, I thought that they could only be used once, as they would have to be glued shut. When I read it, I realized that they were sealed with tape, and could therefore be opened, but not before I came up with a new idea.