UCO Candelier lantern with 8hr. dripless candles and tea lights. Just for fun I made an olive oil lamp out of a glass jar, some cotton twine, and old olive oil. Works great. Burns forever and puts out a good amount of light (equals about 3 candles). Roll the twine together and make the wick really fat for more light.

http://www.judyofthewoods.net/lamp.html