Also known as a parachute bong, the lung is a crude, homemade smoking device that is typically used for consuming cannabis. The device operates similarly to a "bucket bong", wherein negative pressure is used to draw air through a bowl of lit material, filling the vessel with smoke.

Materials -
* A plastic bottle with a cap (2L is my personal preference)
* Duct tape, electrician tape, masking tape, etc
*A bread bag (a small, plastic shopping bag could also work)
*scissors/knife
*any socket roughly the circumference of your finger or thumb (socket or bowl size is really a matter of personal preference)

How to make -

*Remove the label from the plastic bottle and cut the bottom out of it.
*Place the opening of the bread bag around the bottom of the bottle.
*Secure the bag to the bottle with tape and ensure that the seal is airtight, this can be done by inhaling through it.
*Burn a small hole in the cap for the bottle, but make it smaller than the width of the socket (I'll explain)
*When the hole is close to the size of the socket gently heat the plastic so it's malleable
*Attempt to push the socket through the hole and allow the plastic to cool (this will ensure it's airtight too)
*Pack a bowl and light up!

How to use -
Light the material while simultaneously pulling the bread bag, filling the bottle with smoke, remove the cap, inhale and enjoy.