Well this is it.
The gravity bong uses water to pull smoke into the container and then push it into your lungs.
In this case it can be literally anything that will allow you to cut an opening at the top and bottom. Such as a 2 Liter bottle or really any plastic bottle with a cap, but get creative cause there are a ton of raw materials out there for this one. It's limitless possibilities!
There are a couple key points in the construction of any quality Gravity Bong :
- You need to use some kind of bowl to put Green in! It can be a glass one or something you've made out of whatever, I'd recommend 2 layers of __________. . . It just needs to fit into the cap hole, or a hole you've cut into the cap with your trusty X-Acto knife