im sorry if this was you but that is the worst fucking homemade bong ive ever seen. anyone whos ever made a decent one of those knows enough to get a metal 3/8 bit for a bolt drive put that over teh pen a voila you have an acrual bowl instead of tin foil. its so bad to smoke out of tin foil. NOONE USE THIS VIDEO. if you really need it that badly watch this one. http://www . youtube . com/watch?v=3S588gCZO1o did that when i first started and it works beautifully.