Instructions on how to make your own LED light Bulb
FieldLines have created detailed instructions on how to make your own LED light bulb. They say it takes a while to make, but the time spent building it is well worth the look and cost savings of the lower power consumption.
You need a halogen bulb (dead or not dead), some resistors, lots of LEDs (they recommend no more then 22) and other tools like solder to put it all together. The results are quite cool but it does look like a fairly complicated task putting it all together like can be seen below.
Rather then me going through all the steps again, you should go visit FieldLines to get the full instructions on what to do and how to calculate the resistors needed.