Pasto varnish, or mopa mopa, is a traditional technique of decorating objects with wood resin obtained from the leaves of a shrub called the wild mopa mopa, which grows in the jungles of Putumayo and is harvested twice a year. Manual dexterity is fundamental in the process; the resin is cooked, cleaned, and passed through a mill, then softened with hot water, and stained with vegetable dyes and minerals.