Hi :) I added the list of materials in the description. I buy napkins all the time I see something I like. The exact once are hard to find but some of them are on Amazon. I listed a few of my favorites. They have a lot of different designs. I am sure you can find some you love.
Those are just regular napkins. I always look out for designs I like and just buy them randomly. You can find pretty napkins on Amazon, Homegoods or Marshall’s
I wouldn’t. It’s just too thick. But you can always try. If it doesn’t work out just soak it in water to remove the paper from the shell and start over again.