How to Make a Homemade Bong

A bong is a device that filters smoke through water to create a smoother, cooler, and less harsh inhaling experience. Bongs can be made from various materials, such as glass, metal, or plastic, but they can also be easily crafted at home using some common household items. In this blog post, we will show you how to make a homemade bong using a plastic bottle, a highlighter, some aluminum foil, and a few other tools. This method is simple, cheap, and effective, and it can be a fun DIY project for herb or tobacco enthusiasts.

What You Will Need

  • A plastic bottle of any size (the larger the bottle, the bigger the hits)
  • A highlighter (or any hollow tube that can fit through the bottle)
  • Some aluminum foil
  • A sharp tool (such as a pen, a knife, or a paperclip)
  • Some water
  • Some herb or tobacco
  • A lighter

Step 1: Make the Carb

The carb is the hole that you will cover with your finger when you inhale and release when you want to clear the smoke from the bottle. To make the carb, poke a hole near the neck of the bottle using your sharp tool. Make sure the hole is large enough for air to flow through it, but not so big that you can’t cover it with your finger.

Step 2: Make the Downstem and Bowl

The downstem is the tube that connects the bowl (where you put your herb or tobacco) to the water chamber (the bottom part of the bottle). To make the downstem, empty the contents of a highlighter and remove any plastic or metal parts from both ends. You should be left with a hollow plastic tube. To make the bowl, tear off a small piece of aluminum foil and wrap it around one end of the tube. Press the center of the foil down into the tube to create a concave shape. Poke some small holes in the foil with your sharp tool to allow the smoke to pass through.

Step 3: Insert the Downstem into the Bottle

To insert the downstem into the bottle, make another hole slightly above the waterline using your sharp tool. The waterline is where the water will reach when you fill up the bottle. Make this hole about the same width as your highlighter tube. If it’s too small, you may have trouble pushing it through; if it’s too large, it may not be airtight. Push the open end of the downstem through this hole at an angle so that it is submerged in the water. The bowl end should be pointing upwards on the outside of the bottle.

Step 4: Fill Up the Bottle with Water

To fill up the bottle with water, remove the cap and pour some water into it until it reaches just above the end of the downstem. You don’t want to fill it too much or else you may get water in your mouth when you inhale. You also don’t want to fill it too little or else you may not get enough filtration and cooling.

Step 5: Pack the Bowl and Enjoy Your Homemade Bong

To pack the bowl, grind your herb or tobacco until it’s fine enough and add some to your aluminum foil bowl. Don’t pack it too tight or else you may restrict airflow. To use your homemade bong, cover the carb with your finger and light up your bowl with a lighter. Inhale slowly and deeply through the mouthpiece (the top of the bottle). When you’re ready to clear the smoke from the bottle, release your finger from the carb and inhale quickly.

Tips and Tricks

  • You can use any kind of plastic bottle for this method, such as a soda bottle, a water bottle, or a juice bottle. However, avoid using plastic bottles that have been exposed to heat or sunlight for too long, as they may release harmful chemicals when heated.
  • You can also use any kind of hollow tube for your downstem, such as a pen, a straw, or a metal pipe. However, avoid using tubes that have ink or paint on them, as they may also release harmful chemicals when heated.
  • You can replace aluminum foil with other materials for your bowl, such as an apple core, a metal socket, or a bottle cap. However, avoid using materials that are flammable, toxic, or coated with chemicals, such as plastic, paper, or cardboard.
  • You can add some ice cubes, fruit slices, or mint leaves to your water to enhance the flavor and smoothness of your smoke.
  • You can make your homemade bong more stable and secure by using some tape, gum, or glue to seal any gaps or leaks between the bottle and the downstem.


Making a homemade bong is a fun and easy way to enjoy your herb or tobacco without spending a lot of money or time. All you need is a plastic bottle, a highlighter, some aluminum foil, and a few other tools that you probably have lying around your house. Follow these simple steps and you’ll have a fully functioning bong in no time. Just remember to be careful with the materials you use and to clean your bong after each use. Happy smoking!


This blog post was written based on the following sources: