My Mother in Law always put her change in them. Different sizes for each. 1. pennies 2. nickels, 3. dimes, 4. quarters.
She always had laundry change, drink machine, snack machine, best all for my Kids she would give them to my kids
when i would take her to the grocery store. They would get a treat to eat for a snack or gum machines. On a good day
they would get a dip cone.