My little sister was using a CD of an old movie as a bookmark, much to my disdain. Since She didn't have a real bookmark, and I enjoy 3D printing, I designed a bookmark for me to print one for each of us. I quite liked using it, so I though I'd share it.
I recommend using PLA, but other materials should work as well. You won't need supports, and adhesion such as a brim or raft is optional.
The author hasn't provided the model origin yet.