Besides the conventional materials like clay, stone and ceramic chillums are also made of glass. Glass chillums are narrow glass funnels which can be used for smoking because of the presence of the filter stone inside the chillum. They are available in various shapes and decorated with different materials like marble and silver and are becoming prized possession among their owners. Glass chillums are becoming quite popular among smokers because of their beautiful designs and smooth textures. Glass chillums are easy to clean and thus are preferred over other chillums like those made of wood.