Help the children make a mail bag by cutting a large paper plate to make a handle as in the first illustration. Cut another paper plate in half. Put the half of plate on top of the handled plate. Use a hole puncher to punch holes around the edges. Use yarn to lace holes.
You can have the children color the “mail bag” brown. Print a set of cards for each child.
Have them cut the cards apart and put them in their mail bag. Have them take the cards and place them in numeric order just like a mail carrier does.