Just out of curiosity, I wonder what if any liquid EUR-denominated good or services a US borrower could profitably buy with a credit card (if they had a huge, s

Just out of curiosity, I wonder what if any liquid EUR-denominated good or services a US borrower could profitably buy with a credit card (if they had a huge, say, $1M credit limit), in the event the Euro ever dropped >5% in one day against the dollar, to exploit this delay. I can't think of anything offhand but I bet someone clever could, and make some money doing it.