A little roundup of today's questions ...
Is it a fossil? No.
Some sea shells or dried butterflies? No.
A collection of dried bugs? No.
A collection of preserved butterflies? Or beetles? No and no.
A collection of French cicadas? No.
Remember, it is NOT an animal part, but it IS animal versus vegetable or mineral.
Is it made from glass? Is it used for drinks or food? Yes. No.
Was it alive at one time? No.
You said, "think mustier." Could it be a first edition tome? No - but this is a reasonable question, Christina, as books can be made of things other than paper :)
Is it bone? Or shell? No. No.
What's left in the world?
Be brave! Keep going! Put the pieces together!