If you believe this is going to cause chaos or significant burdens on merchants I have got a bridge to sell you (but I don't take pennies). This quote tells you all you need to know.

> The government’s phasing out of the penny has been “a bit chaotic,” said Mark Weller, executive director of Americans for Common Cents. The pro-penny group is funded primarily by Artazn, the company that provides the blanks used to make pennies.

The same thing happened many years ago with the same company (previously called Jarden Zinc).

> Americans for Common Cents is a non-profit lobbying group dedicated to the protection of the one-cent coin. The group is primarily interested in preserving the penny for economic and historical reasons. In 2012, Executive Director Mark Weller was paid $340,000 by Jarden Zinc to discuss issues relating to minting with members of Congress and the US Mint.[41] Weller has acknowledged this funding, saying that “We make no secret that one of our major sponsors is a company that makes the zinc ‘blanks’ for pennies."[42] Weller has testified on multiple occasions before Congress. In 2020 Weller testified that the use of cash protects privacy, provides economic stability and "is a public good" that should not be replaced by mobile money.[43]