If you dont have a toothpick, then you can use other sharp, slender objects, such as a needle and a straight pin. Now place the foil over the bottom end of the cylinder from your pen, marker, or highlighter. Carefully screw the bowl back onto the bottle. Breathe in deeply so the smoke goes directly into your lungs. If youre in a scenario where you need to make a homemade bong, you probably need to make a bowl for it, too! That will cause the smoke to be less thick than usual. Instead, a water bottle bong is a last-ditch effort when you find yourself in a pinch and have no other way to smoke. The piece of aluminum foil should be large enough to cover the mouth of the bottle and fold over the edges. Water bottle bongs are not intended to be permanent, repeat-use smoking tools for several reasons. Water bottle; Aluminum foil; Needle; Utility knife; Assembling the Water Bottle Bong. You also agree to Weedmaps' privacy policy Dont worry about changing it unless you rip the foil or if the holes get clogged and prevent adequate ventilation, at which point you should swap it out with some new foil. What is a gravity bong and how do you make one? Amazon Associates Program. When finished, push the pen casing into the hole and you can now use this as a bong after you fill it with water. Ensure that its large enough for you to draw air from, but not so much that the ground-up weed will fall right through it. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/3\/39\/Make-a-Water-Bottle-Bong-Step-1.jpg\/v4-460px-Make-a-Water-Bottle-Bong-Step-1.jpg","bigUrl":"\/images\/thumb\/3\/39\/Make-a-Water-Bottle-Bong-Step-1.jpg\/aid3587818-v4-728px-Make-a-Water-Bottle-Bong-Step-1.jpg","smallWidth":460,"smallHeight":306,"bigWidth":728,"bigHeight":485,"licensing":"