Back when i had just started smoking, i had used cans with holes it them and light bulb vapes countless time until i smarted up and got a nice piece of glass. If you want to see some crazy homemade shit, google "smart water bong". People make double and triple perks out of smart water bottles. Its pretty cool
http://forum.grasscity.com/toking-tools/908218-massive-vape.html#post12164366 http://forum.grasscity.com/toking-tools/856408-my-homemade-vape.html