A chillum, or chilam, is a straight conical pipe with end-to-end channel, traditionally made of clay and used since at least the eighteenth century by as sadhus  in India. It was invented in India. The culture of owning and smoking in a chillum has spread from India to the rest of the world since the mid-1960s.[dubious ]
According to Alfred Dunhill, Africans have long employed chillum-style pipes for smoking cannabis and later tobacco. Gourds and various horns were often employed while conical bowls were common in Uganda. One of the more famous pipes is an ivory cone pipe once belonging to "Waganda" monarch King Mtesa.
Since the 1960s the embellished bamboo chillum has become an American folk art form. These pipes are handmade and often sold by the artists on street corners in places like the Haight-Ashbury district of San Francisco and the Greenwich Village area of New York City. As designs these contemporary smoking pipes recall traditional decorated bamboo pipes from Borneo, however, the American carved bamboo design often employs a brass lighting fixture for a bowl. Since the 1970s, street artist Darrel "Pipeman" Mortimer of San Francisco has made nearly 10,000 such pipes, each signed, numbered and sold personally.
A bong-like chillum equipped with a water filtration chamber is sometimes referred to as a chalice, based on a quote from the Biblical book of Deuteronomy. Thanks and praises are offered to Jah before smoking the chillum.
- A bidri chillum, India, 18th Century
- Dolf Hartsuiker. Holy Smoke Sadhus and Yogis of India
- Dunhill, Alfred: "The Pipe Book", London, A & C Black, 1924
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- Austin, Buck: "Darrel Mortimer", Alarm Magazine, Chicago, summer 2004
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