The most easy lamp you will ever make!
If one of your lamps have been damaged, is mine have there are easy ways to make a new one. Thos one is the easiest possible.
Make a hole in the lid of the jar. Because I'm from norway my jar is a "Norgesglass", which is the same thing as a mason jar. Then you can fit the lamp cord in the lid and find a light bulb.
The last thing to do is put the jar back in place with the lid and turn on the light! Voila!