Testing out how illuminate the Lego Light Bulb is and how it works. I say its a success, just need to try using the Lego Power Functions LED lights instead of a Light Brick.

Later, this will go on a hat based off a hat in the the MMOG Lego Universe, (needs to refill subscription for new Lego Ninjago area *sidetracks*)

And yes, working around Lego bricks causes side effects for bad puns, but you get the "idea" ;)