A special thanks goes to 1up for the Joule Thief circuit from his instructable "Make a Joule Thief" and brunoip with his slideshow "The led guy" that brought me to the idea to make a glowing LED man.
I don't know why, but the photos appear in poor quality here, although I uploaded them in quite good quality. If someone knows the reason and how to solve the quality problem, please leave a comment.
If you can't read the speech balloons, here's a link to a better image of the whole comic:
Have a look on its big brother too!