Some accessories for the bong are vital some are mere ornamental or for tuning purposes.

Here's an overview over a bunch of devices completing or supporting your bong.

Waterpipes made from glas are known as (what else?) glass bongs. These bongs are more popular than the bongs made of plastics because they look more noble, are easy to clean and offer better taste (because acryl tends to take on an odor of "old bong" even after little use).

Many traditional glassblowing manufacturers are now producing high quality glass bongs, the famous Thomas Ehle comes to mind whose bongs are shipped from germany all over the world.

Acrylic bongs are waterpipes made from plastics/acryl. In general they are quite cheap but extraordinairy durable and come in the most surprising of designs and colours.