Dime After Dime: A Gripping History of Claw Machines | Mental Floss
- In his 38 years in the carnival business, Ernie Collins never had occasion to stop and think about the possibility of agents from the Federal Bureau of Investigation putting him under surveillance. Collins was just a barker, a boardwalk salesman who convinced other people to play games. One of his leading draws was a tabletop contraption that allowed the user to maneuver a tiny steam shovel with a wheel. Get it right and you could use its maws to pluck a silver dollar from a sea of kernel corn. They were known as diggers.