The WDW parks sell a pressed penny book ($6 or so ) ... it holds 36 *smooshed* pennies and 6 *smooshed* quarters as we like to call them.
My g'kids collect their pennies in the book ... I collected a few and intend to mount them on scrapbook pages ... FW penny on FW page and so forth.
I understand you can use two of the CM's large photo corners to hold a penny ... haven't tried it yet ... I am WAY behind on my scraping!