Excuse my delay in posting.
I have been so busy--painting a room, getting things in order, reading a lot, working at night.

I really wanted to mention the idea of using slide protectors in your art, or, in this case considering making a purse with them.
These vintage items are readily available on ebay or similar places.

These examples are from the book Collage Lost and Found: Creative unique projects with vintage ephemera, by Giuseppina Cirincione.
I spotted this book while browsing at Barnes & Noble one day, and absolutely HAD to have it.
I have not been disappointed.

Here, she used metal slide mounts as the cover of a photo album.
I adore this idea.
Especially with the metal mounts, I can envision this in purse form.

Here, she made a book with paper mounts
I like how she stamped words across the paper, and made charms from old Bingo cards.