I made these little guys by accident. I saw a similar project a while back and picked up some copper tubing when I was in a Home Depot. After a quick trip to a Dollar store to buy some cheap garden lights and a little soldering rework later I had my own little robot fleet. These little guys charge up during the day and shine their LED at night. Not terribly impressive but they were fun to build and made for great little gifts.
About to be Stuffed With his Guts
An LED drink anyone?
I Wonder What These Wires do?
The Whole Gang