First off, I would like to thank Goosie for the idea. His is the most common and simplistic.
Materials:
Light bulb
Bottle Cap (size depends on size of light bulb...)
Knife
Straw
Tape (Electrical is best)
Procedure:
1) First, take the light bulb and your knife. Cut off the top of the metal part of the light bulb with the knife (or saw i guess... just be EXTREMLY CAREFUL! seriously... i dont want people getting cut badly because of my tutorial! take your time and do it slowly and carefully)

2) When you have that metal part cut off, then empty out the inside. Take out the metal stuff inside that makes the lightbulb make light... when your done the inside should be cleaned out. Using plyers helps since most of the peices are aluminum (i think...) and just bend really easly to fall out.
Also be sure to clean out the bulb completly with soap and water, and let fully dry. and be careful as bulbs are quite fragile!

3) Now find a bottle cap (mostly 2 liter coke-bottle caps work... they have on all the bulbs ive tried so far...) and screw it onto the light bulb (thats why you left some of the metal there ) to see if it fits. if it doesnt, look for a diffrent sized cap.

4) Now take your cap off and make 2 holes in it. 1 just big enough to fit a staw through, and the other slightly smaller. These are your inhalation holes, and your clearing hole. the smaller one is to cover with your finger to keep the smoke from excaping. the one with the straw is to inhale

5) Now to put in the straw to complete your vaporizer! put the straw into the larger hole

6) To use:
unscrew the top, and put your weed in (i break mine up, but thats just me...). Cover the smaller hole and put your mouth on the straw (dont inhale) and put the bulb over a tea-candle or use your lighter under the bulb. the bulb will fill with white smoke. after it does that, uncover the small hole and inhale through the straw. makes weed last longer and gets ya pretty damned high hope someone finds this useful on one of those days with nothing to smoke with... takes aprx 15 minutes to build.
source:
http://www.planetskunk.com/cannabis4261.html






