Will the United States join other developed nations and...get rid of those beloved yet pesky dollar bills? Past attempts at US$1 coins did not do very well. The Eisenhower dollar coin made for a great saucer or frisbee but usually sat in a bowl on someone's dresser. The 1979 Susan B. Anthony dollar coin was a polite nod to the women's liberation movement of that decade but ended up less popular than Jimmy Carter. Sacagawea's mug shot made for a pretty gold tinted coin that was popular in casinos, transit systems, and Ecuador, but was still a flop. Finally, the presidential dollar coin has done a solid job in remember past presidential greats like Rutherford B. Hayes, but has proven less popular than the U.S. state quarter dollar series.