multicolored patterns, often entwined with gold or silver thread, are woven using the ikat technique, in which each individual thread is tied. Cambodia's long tradition of metal work nearly disappeared, but the French revived it in the early 20th century. Silversmiths produced popular items of the period, such as animal-shaped boxes, intricately decorated, that were used to hold the ingredients of a preparation known as betel, which is chewed as a stimulant and tonic.