I found an article describing how to build an inexpensive light tent.
I think it will be useful for amateur photographer that can't spent a lot of money but want to have good pictures!
Infact with a light tent you can shot a picture from an object and isolate it from the background (also for change the BG color, like I made with this dragon!)
So, go read the article from digital-photography-school.com!
How to make an inexpensive light tent