I saw something on-line and was intrigued... I should have written the link name because I couldn't find it again to see if I did it the same way... c'est la vie.
I pierced 12 holes either 1/2" apart or 3/4" apart depending on the size of ribbon I was using.
Each signature had the ribbons going thru the binding as I was binding the booklet. A little awkward but Love the results.
Added brass corner protectors.