This is a very simple bookmark; prints relatively quickly, easy to notice, and has a small nub at the end for decorative and friction purposes.
Print with small layer height, e.g. 0.05mm. Bookmark is 0.3mm tall, with nub at the end going up at 0.6mm. It is possible to scale up thickness for a more sturdy construction.
Examples have been printed in Formfutura HDGlass PETG
The author hasn't provided the model origin yet.