In the singing tradition I participate in, there's a (sub)tradition of singers decorating the edges of their book, because otherwise the books all look more or less the same.
This obviously works better for people who can draw.
The top part of the book's design was procedurally created, inspired by the Processing sketch 'Ornamental Tree' by Algirdas Rascius (https://www.openprocessing.org/sketch/2614
) (CC-BY-SA, thanks Algirdas!) I changed parameters and made the 'leaves' on the tree look like the shape-notes in the book.
The bottom part of the design was made in Inkscape.
This was my first time using a laser cutter, and they're great. I am very excited to find an excuse to use one again as soon as possible.