the pens are the only thing making the bong possible, theres a metal bowl, maybe ill go buy some small metal piping

I'm currently in school for mechanical engineering
drKillgore Reviewed by drKillgore on . my sobe bongs http://img300.imageshack.us/img300/6063/img0374tu6.jpg water filtrated steam roller on the left, bong on the right both work rather well:thumbsup: Rating: 5