Tomorrow (Thursday, June 6) at McDonald's between 2 and 5 p.m., you can choose 1 of 4 international items in exchange for ANY current foreign coin/note. I figure since lots of us Americans are finding foreign coins on the beaches, this would be a good way to put it to use! It's not often you can get a burger for a Canadian penny!
https://hip2save.com/2019/06/04/mcdonalds-international-currency-exchange/
https://hip2save.com/2019/06/04/mcdonalds-international-currency-exchange/