> The reformulated penny didn't take too long to be accepted. A new nickel would probably be accepted well too. Part of the problem is with how vending machine

> The reformulated penny didn't take too long to be accepted. A new nickel would probably be accepted well too. Part of the problem is with how vending machines detect valid currency Story about when the dollar coin was updated https://www.oklahoman.com/story/news/2000/06/13/vending-change-helps-dollar-coin-mechanical-alteration-circulates-sacagawea/62194188007/ https://www.oklahoman.com/story/news/2000/06/13/vending-chan... Pennies aren't accepted by vending machines generally.