What to do with a pair of cheap speakers and those extra solar panels you have lying around? Blogger "Radu" got some balsa wood and built a solar-powered boom box. You could do the same: Just attach an MP3 player to the back, let it bake in the sun for a while and rock out to some tinny tunes. Why? Because it's summer and you can.
Link via Hacked Gadgets. —Mike Haney
Build Your Own Laser