My wife likes ordering the photo books through Google Photos. I wanted to have a dedicated spot for them under our sofa table. A quick search didn't get me what I was looking for so I designed my own.
Size to 180x182x60mm using the bestagon for cutouts to save a little filament without losing much strength. Print vertically with the back of the shelf on the build plate. No supports required.
There are style options depending on what tickles your fancy.