For those who find a Lincoln memorial penny with a jfk head counterstamp this is the origin. It was a promotion done by Telcom credit union during the mid 70's. : r/coins
Penny with JFK face on it - Kissing Presidents Coin, Kissing Lincoln Cent - YouTube
Rare Penny With Kennedy's Face And Lincoln's Face... How Much Is It Worth? | U.S. Coins Guide
1900 Republican National Convention 44mm • Steinmetz Coins & Currency
Rare Henry Ford 1917 Help The Other Fellow Sample Coin No Reserve | #293336157