One of the Mint Forum topics was hobby promotion.Rich Bottles writes about an interesting promotion from Ally Financial Inc (the former GMAC):

As part of 'Lucky Penny' promotion, Detroit-based bank is placing these special coins across various U.S. cities

Stopping to pick up a stray penny off the ground may not seem worth the effort, yet one bank is trying to change that mindset by placing 100 fake pennies across the country worth $1,000 apiece.

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 flip side of the coin lists its value at 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.

To read the complete article, see:
Ally Bank places 'lucky pennies' in Detroit worth $1,000 each(www.freep.com/story/news/local/michigan/detroit/2016/10/20/detroit-ally-bank-lucky-penny/92453390/)

The campaign launched Tuesday in an effort by financial services company Ally Financial to 'demonstrate the importance of valuing every cent, while encouraging Americans to look for opportunities to save.'

'We believe every penny counts when it comes to saving, and it's important for everyone to understand that routinely saving, even the smallest amounts, is important to generating wealth over time,' said CEO Diane Morais, of Ally Financial, in a statement.

In New York, one clue says: 'How to honor the Constitution's author? With his own NYC park & and #AllyLuckyPenny in it.'Another says: 'Every penny honors our 16th President. This Manhattan green honors our 4th.'

The special pennies are slightly larger than common ones, with an Ally logo on one side and '100,000 cents' on the other. 'We hope that people will have fun searching for Ally Lucky Pennies in their cities and that the campaign will inspire people to look at money in a different way,' said Andrea Riley, Ally's chief marketing officer, in a statement.

To read the complete article, see:
Some 100 'lucky pennies' worth $1,000 are hidden in 10 major cities across the United States in campaign to 'demonstrate the importance of valuing every cent'(www.dailymail.co.uk/news/article-3849944/Some-100-lucky-pennies-worth-1-000-hidden-10-major-cities-United-States-campaign-demonstate-importante-valuing-cent.html)

According to a group of statisticians, a spinning penny will land "tails up" 4 out of 5 times. "Heads" weighs slightly heavier.

President Lincoln is the only face. on U.S. coinage facing to the right. All other portraits on coins face left.

It costs around 1.8 cents to make a single penny.

About 30 million pennies are produced per day. That's 13 billion pennies every year.

Beneath the year of issue appears a mintmark-D is for Denver, S for San Francisco, and no letter means minted in Philadelphia.

The original penny, reportedly designed by Benjamin Franklin, had an image of the sun and the phrase "Mind Your Business."

For more information, see:
https://www.allyluckypenny.com/