If you're headed to Detroit anytime soon be on the look out for pennies that could be worth 100,000 cents.

Ally Bank says it is hoping to encourage Americans to look for opportunities to save through its “Lucky Penny” promotion, which launched this week. The lucky pennies carry a copper color like real pennies, but feature the Detroit-based bank’s logo instead of Abraham Lincoln’s head. The other side of the coin says it worth 100,000 cents.

The pennies have been placed in New York, Los Angeles, Chicago, Washington, D.C., Miami, Denver, Detroit, San Diego, Charlotte, North Carolina, and Austin, Texas.

The coins can be redeemed online until the end of the year.