The drawer

This is the ultimate lung.
First, you need a drawer and a plastic bag, like a garbage bag.
Then, what you do is this : You line the inside of the drawer with your bag, leaving a considerable amount of slack inside : to allow for it's opening and closing. Then you puncture or drill a hole on the top, and you let the opening of the bag come out of there, so the only hole in the area in the drawer is that hole. After that, you get a bowl, and make sure that it screws into the hole.
To get high, you simply put the bowl in the hole, pack it with weed, and while your lighting it, you pull the drawer open; thus sucking in the smoke. Then you unscrew the bowl, place your mouth up to the whole, and slam the drawer shut, sending a huge amount of smoke into your lungs.
If someone tries this, post a comment..