They've done some of that in the past. The United States had a half-cent coin until 1857. When it was coin was eliminated, it was more valuable than the penny i

They've done some of that in the past. The United States had a half-cent coin until 1857. When it was coin was eliminated, it was more valuable than the penny is today[1]. There is also a US $1 coin. They were widely used in Equador when I visited in 2005, because their currency was pegged to the US dollar. I spent a day in Miami on my way back home and I left a few as tips. People were very confused by them. It seemed kind of funny to me that a US coin was more commonly used outside the US than inside. [1] See CPGrey's "Death to Pennies". https://youtu.be/y5UT04p5f7U https://youtu.be/y5UT04p5f7U