books
thingiverse
I daughter wanted a box for a Graduation party that looked like books. I have a 300mm bed so it will need to be cut in pieces to fit your printer or made smaller.
Download Model from thingiverse
With this file you will be able to print books with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on books.