We all have unusable or worn off light bulbs with them . Until now I used to toss them away when they become faulty.
But yesterday I saw some good ideas of using the faulty light bulbs as decorative object. Everyone would say yeh we know but light bulb is not just a hollow glass vessal. It has some filament and other parts. I have searched and found a man who has posted a pictorial guide to hollow out the worn out light bulb (click here).