User blog comment:Mr.123/Crazy effects needed/@comment-4273152-20160130090057

Vannoccio Biringuccio's Soldo: A series of silver coins that, when given to a person, makes them intent on digging for silver. Biringuccio used these coins to pay his workers in the late 15th century to motivate them into furthering his mining operations. They found little silver, but the large amounts of copper and iron made him ever richer.