for sure dont smoke joints.

people argue that in waterbongs, the h2o bonds more easily with the THC than it does with the tar and toxins, so its possible that it gets you less high than a pipe.

my best bet would be gravity bong. that shit can finish you off in 1-2 hits. easy to make too. just cut the bottom off a 2 liter and use a bathtub. i do it when i dont want to waste time with my bong.