[favorited]

Ecuador mints their own centavo coins, but they are not legal tender outside of Ecuador. They've never released their own $1 coin into general circulation – their ubiquitous Sacagawea dollars are minted in the US.

[kragen]

Sorry, I didn't mean to say they minted US$1 coins, just coins whose value is denominated in dollars. I think the biggest one is US$0.25?

US dollars are also not legal tender outside the US, with a few exceptions (I think including both El Salvador and Ecuador.)