Luck to the Drinker

Mescal, better known as the alcoholic drink tequila, contains an agave worm at the bottom of the bottle when made in the traditional way. The worm, which is actually a butterfly larva, is found on the plant from which mescal is made. Traditionalists claim that the worm adds to the drink's flavor and color. But that's not all. It's also believed to bring good luck to the drinker.