A souvenir machine will only give you a weapon once three coins have been put into one machine. This is the key to getting all of the different weapons in Infinite Warfare’s zombies.

There are tons of Machines scattered across the park, all you need to do is make sure that the power is on in the area, and you will be good to go. Every three Souvenir Coins you deposit, you will ...

A view of the inner works of a smashed penny machine at the entrance to the St. Louis Zoo on Dec. 7, 2017. It has souvenir coins that can be made with pictures of several different animals at the Zoo.

Alan Fleming, of Scotland, is the owner of Penny Press Factory, one of a number around the world that manufacture machines that flatten and stamp coins.

Machines that crush pennies into souvenirs may be affected the most by the news the U.S. Treasury Department will stop minting the copper-coated zinc coin. They're in malls, amusement parks, and ...