Just make a waterfall bong, same premise but you take a 2-liter pop bottle, poke a hole in the bottom, make a bowl out of the cap, fill it with water, put the bowl on while covering the whole, light it and let the water drain out. This causes the smoke to fill up the whole two-liter, unscrew the cap, shake the water around and inhale, I guarentee a few seconds after you exhale (it will look like almost nothing) you will get a major head rush and be fucked up. I miss mine I need to make another one, I strecthed my stash so much exclusively using one, one would have me high, two would have me fucked up, but this all depends on the size of the bowl, mine probably was half of a glass bowl.