dazed and confused when they're on the back of that car during that party at the moon tower.

theres a movie called 'gacy' about this serial murderer John Wayne Gacy and they rip up a few bongs in it. its a really fucked up movie though.

dude wheres my car, when the dog hits the pipe

super troopers when they're smoking in teh car at the beginning

harold and kumar go to white castle when the jews smoke out of that ram horn. i'm not sure what it is exactly, but its some sort of ceremonial yom kippur type thing. very sacred, if i understand correctly