Storage box for bookmarks / "Page Tracker" ( http://www.thingiverse.com/thing:113991 )

I have recently printed a bunch of excellent bookmarks / Page Trackers ( http://www.thingiverse.com/thing:113991) by the user Alejoo ( http://www.thingiverse.com/Alejoo ). I soon noticed though that they might get lost around the house so I have decided to make a spring driven dispenser with a magnetic mount ( http://www.thingiverse.com/thing:1688487 ) which now I have put to both bathrooms and places where my family members like to read. Later it appeared to me that I need to have some spare b