Piggy Bank

Was wondering why it is called a piggy bank and happened to make this over the weekend :P

P.S. It's called piggy bank because during The Middle Ages, in about 15th century, metal was expensive and seldom used for household wares. Instead, dishes and pots were made of an economical clay called "PYGG". Whenever people could save an extra coin, they dropped it into one of their clay jars.They called this their pygg bank or their piggy bank.

Source: Quora