The Penny and Dime Scam is a scam typically targeted at banks and large retail stores. The con will wrap pennies into a dime-roll wrapper and try to exchange it. Sometimes the con will also exchange other legitimate rolls of coins at the same time to allow himself to make the excuse that he made a mistake should the roll be discovered. A confidence trick, confidence game, or con for short, (also known as a scam) is an attempt to intentionally mislead a person or persons (known as the mark) usually with the goal of financial or other gain. ... Banker redirects here; see wiktionary:banker for more meanings. ... Look up Dime in Wiktionary, the free dictionary Dime has several different meanings, here are some of them: Dime (U.S. coin) - a U.S. coin worth ten cents. ... A coin is usually a piece of hard material, generally metal, usually in the shape of a disc, and most often issued by a government, to be used as a form of money in transactions. ...