First, Water bongs are made of various materials such as glass, acrylic, ceramic, and silicone. However, glass Water bongs are the most commonly used due to their ability to deliver the cleanest taste and highest-quality smoking experience. The design of the water bong typically includes a bowl to pack your herbs, a downstem that connects to the base, and a chamber that holds water. As the smoke passes through the water, it gets cooled and filtered, resulting in a smoother hit.