Some simple adornments for your spellbook.
You'll want to print each of the corner pieces 2 times, assuming you want them on the front and back. They may look identical, but if you want them to be symmetrical dont just duplicate one 8x.

I made this as part of a D&D prop for my wizard. I've taken a bit of faux leather, stretched it around a binder, and these will be glued to the front.