I saw a thread on twitter about how to make your own sketchbook and thought, “Hey, I have all the supplies needed for that! Let’s try making a book!”
I have since lost the tweets in question, so unfortunately I can’t link you to the guide I followed, but it turns out that book binding is much easier than I thought it was. It took a really long time though, so I don’t think I’ll get into doing this regularly.
The cover is a lightweight canvas wrapped around cardboard, and the pages are watercolor paper that I had lying around.