In this video tutorial, viewers learn how to make an easy and cheap gravity bong without foil. The materials required for this project are: a 2 liter bottle and cap, barb, knife, pitcher, water, herb and a lighter. Begin by poking a hole into the top of the bottle cap with a knife. Then insert the barb into the cap hole. Now poke several holes and cut off the bottom of the bottle. Twist the bottle cap onto the cap and then place the bottle into the pitcher. Now fill the pitcher with water, add in the herb and light the barb with a lighter. This video will benefit those viewers who enjoy smoking and doing drugs, and would like to learn how to make a cheap, homemade bong without using any foil.