Well this isnt a pipe, but i was stoned when i did it so here goes, i fixed a pen in class the other day when i was forced to borrow one and hte only one someone would give me was broken. It had a spring keeping hte ink protruding through the end, the spring was missing. I ripped off a bit of bus ticket that i had, (emergancy roach making stash in my wallet.) jammed it in the top, and viola, Fixed pen....