You find a lucky penny. Really, it actually is lucky! Now, where do you keep it so you won’t be the next one to lose it and have someone else find that lucky penny? Keep in mind the penny is designed to be lost and there are endless ways to lose a small thing like a lucky penny: in the wash, in a drawer, on the windowsill… etc.
Where will you save it and not forget where it was?
I keep all little treasures that are small in my jewelry box and this would fit in there quite well.