what hardware parts to make tobacco water pipe?

[toxicc]

a 'great' bong can be made by using a mason jar, doing 2 holes on the metal top (or 3 if you want a ventilation hole), insert a used pen tube, straw or anything similar in one hole, and something to be used as a bowl in the other one. it's a little tricky to do holes correctly so you can patch them with gum to seal it. it can makes great glass bongs

(holes can be made by using an hammer and a nail, and enlarging them to the correct size with solid cisors)