Thank you all so much for the fantastic tips and ideas, I had a blast reading through all of the responses. They were creative and thoughtful and smart; just what I would expect from a bunch of sewists!
And the winner is...says the random number generator...number 37!
"I love the thought of the bullet casing. My imagination is running wild with this one...but from experience I know that they make great whistles...maybe she used it to store her needles."
See? Creative. And I never knew you could whistle on a bullet casing!
Thank you again to all who participated! Happy Saturday!