Now that I am not obsessing over several challenge entries I wanted to stop by and leave a comment on this one that you posted in the thread titled "Why oh WHY can't it be easy?". As quite a few pointed out that the bg is too gray rather than the bright white I think you were going for. I like the idea but a bright white background and sharper detail on the light bulb would help this compositional idea tremendously. You might want to try building a simple & easy Super Simple Light Tent. Playing around with a smaller aperature (6.3 or higher) and slower shutter speed (1/10 to 1/60)will net you sharper details in your main subject and quite possibly get a brighter white depending on what background you use & lighting you use (be careful of the tungsten light bulbs for they can give a yellowish cast to the image). Another thing that I found instrumental is adjusting the WB on your camera. For a recent shoot I changed the White Balance from Auto to Custom and found that it got rid of the awful yellow tinge or flat tinge in the photo.
Hehehe - I like the humor in this. Nice concept! It might be even better if your background was very white (with no shadow), but then again, your bulb might lose the "lit" look then.
Interesting picture. It really does look like you are having to teather it. Good use of space, it is a bit out of focus though. Other than that, Its great!