Sampo is a magic mill that produces grain, salt and gold produced by Seppo Ilmarinen on the fifth day after 4 unsatisfactory attempts: 1. a crossbow with a golden arch, a copper shaft and quarrel-tips of silver. 2 a metal ship from the fire, with ribs of gold and copper oars. 3. a metal cow emerged, with golden horns and the sun and the stars on its brow. 4. a golden plow , with a golden plowshare, a copper beam and silver handles http://en.wikipedia.org/wiki/Ilmarinen