Molybdomancy

Molybdomancy (German: Bleigießen) is a technique of divination using molten metal. Typically molten lead or tin is dropped into water.

The method was invented in ancient Greece, and today it is a common New Year tradition in the Nordic countries and Germany, Switzerland and Austria. Classically, tin is melted on a stove and poured into a bucket of cold water. The resulting shape is either directly interpreted as an omen for the future, or is rotated in a candlelight to create shadows, whose shapes are then interpreted. Molten lead is also poured into water in a ritual in Turkey used when people have been affected by the evil eye, and a similar traditional practice is used in Bosnia and Herzegovina.

In Finland, shops sell ladles and small bullions in the shape of a horseshoe for this express purpose. Originally made from tin, now they are made from cheaper low-melting alloys based on lead. The practice is known as uudenvuodentina. World's largest uudenvuodentina, 41 kilograms (90 lb), was cast by members of the Valko volunteer fire department in Loviisa, Finland, in New Year 2010.