@Felthry god i had to do that once for a design project where we were using cardboard and twine to build architectural stuff
ended up showboating and making the cover out of cardboard with scored and peeled detailing and decoration, and threading twine to bind it and also through the corrugation to make a nice soft mesh where the decoration left holes
i cut my hands so many times on that one
@Felthry no idea honestly, just kinda... bound the pages together the way you'd staple a booklet, but with twine
and then like... spiral bound that to the cardboard cover, also with twine