I designed this really simple bookmark to put in-between your book, magazine or something else. I made a few different versions but you can easily make your own version by download the “Bookmark Base” file and adding something on top (Like a name photo etc.). If you want to you can also print this design in multi-color like I did with the cat.  I printed my bookmarks in PLA but other materials should be fine to (PETG might give the bookmark a little more flex).

Be sure to check the remixes for some modified bookmarks from the community! 

EDIT (READ BEFORE PRINTING): 
(23-06-2022)

If the bookmark is to thick, you can scale the Z-axis down by 50%. (or you could scale the whole thing down) This should make the model thinner as some people have complained that the bookmark is to thick.

PS: I'd love to see your customized bookmarks ;)