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Ever wonder why pigs became the symbol of saving money? Wonder no more!
Long ago, dishes and cookware in Europe were made of a dense, orange clay called “pygg.” When people saved coins in jars made of this clay, the jars became known as “pygg banks.” When an English potter misunderstood the word, he made a bank that resembled a pig. And it caught on.
Newton’s Telecom Dictionary, p.716. [just don't ask me why its in there]

