This is how to do some very simple glassblowing using regular incandescent lightbulbs. I don't know of any use for it, except that it's something fun to do.
Here is a list of things you'll need
- Any normal light bulb
- Gas torch, a butane torch lighter will work, too
- Sharp phillips head screwdriver, or a punch
- Hammer, or something to tap with
- Needle Nose Pliers
Step 1: Prepping the Bulb
First, take a pair of pliers and remove that little copper connector at the end of the light bulb. This will reveal a small hole
Next, take a sharp screwdriver, or a punch, and place it snug on the hole. Then take your hammer and start tapping to break the black glass away. Move the screwdriver or punch around to peel the black glass out, and throw it away.
This will reveal the insides of the bulb. Stick your screwdriver and punch inside, and start breaking the glass inside. Dump out whatever you break. If there is any straggling glass, or wire, then stick your needle nose pliers in there and pull the contents out.
Be sure everything inside the lightbulb is removed, and all you have is the hollow bulb.
Step 2: Salting the Bulb
Next, get some regular table salt, and pour some inside the light bulb. Put your thumb over the hole, and shake it around to get rid of the white coating inside the bulb that makes the light "soft." Shake it around until it is all removed, then pour it out in the trash.
Step 3: Heating the Bulb
Now get your torch, or butane lighter, and start heating the bulb. Concentrate in one spot and it will get glowing red hot. If you let it sit in one place while you do this, the weight of the glass will actually flatten it out, or droop, or whatever it will do in whatever position you are holding it.