This is going to get closed, but until then...
I have no pics, but homemade bongs are underrated, assuming its not a "run around the house collecting pens and pop bottles" bong.
The gravity bong, something every stoner should try at least once, gets you higher than any expensive piece of glass, and can be made for free, or under $5 if you don't have the supplies.
http://upload.wikimedia.org/wikipedia/commons/thumb/4/4b/Gravity_bong_diagram.svg/800px-Gravity_bong_diagram.svg.png
Or the waterfall bong:
http://bongbuilding.net/sobe-bong.htm
Both will get you stoned like no other, and on tiny amounts of weed.
As for a DIY hookah, the best I ever used was at a cannabis march in Vancouver, made out of a water cooler jug:
http://www1.istockphoto.com/file_thumbview_approve/1235152/2/istockphoto_1235152_water_cooler_jug.jpg
with clear plastic hose, both easily obtainable. You needed a a lot of people to be puffing on it to get it to work, but there wasn't any shortage of volunteers. :D