The Zhengde Tongbao is a fantasy cash coin, Chinese, and Vietnamese numismatic charm bearing an inscription based on the reign title of the Zhengde Emperor of the Ming dynasty. The Zhengde Emperor reigned from the year 1505 until 1521, however during this period no circulating cash coins were minted. There were a large amount "cash coins" bearing the Zhengde era name are minted from the late Ming to early Qing dynasty periods as superstitious "lucky coins" with auspicious depictions and instructions, as this inscription remained popular for charms modern reproductions of the Zhengde Tongbao are also very common.

Yansheng Coins, commonly known as Chinese numismatic charms, refer to a collection of special decorative coins that are mainly used for rituals such as fortune telling, Chinese superstitions, and Feng shui. They originated during the Western Han dynasty as a variant of the contemporary Ban Liang and Wu Zhu cash coins. Over the centuries they evolved into their own commodity, with many different shapes and sizes. Their use was revitalized during the Republic of China era. Normally, these coins are privately funded and cast by a rich family for their own ceremonies, although a few types of coins have been cast by various governments or religious orders over the centuries. Chinese numismatic charms typically contain hidden symbolism and visual puns. Unlike cash coins which usually only contain two or four Hanzi characters on one side, Chinese numismatic charms often contain more characters and sometimes pictures on the same side.