The most significant recent developments in Canadian coinage were the introduction of $1 and $2 coins and the withdrawal of the one cent piece. The $1 coin (the "loonie") was released in 1987. The $1 banknote remained in issue and in circulation alongside the one dollar coin for the next two years, until it was withdrawn in 1989. The coin was to be the voyageur-design silver (then nickel) dollar coins that had previously been in limited circulation. The dies were lost or stolen in November 1986, requiring a redesign. The new coin is colloquially called the "loonie", for the common loon on its reverse, and the name is frequently applied to the currency unit as well. It is made of nickel plated with aureate bronze. The $2 coin, carrying a polar bear, was introduced in 1996. It is usually called the "toonie" and is bimetallic. The $2 banknote was withdrawn at the same time that the coin was released. Unlike several U.S. attempts to introduce a dollar coin, the new coins were quickly accepted by the public, owing largely to the fact that the Bank of Canada and the government forced the switch by removing the $1 and $2 bills from circulation.