Forbidden Planet Book Strap

As You know, I keep sketch books and note books on hand. I always had an issue with pages , loose notes and sketches falling out since grade school.
This one has the United Planets logo from Forbidden Planet C57-D cruiser.
I got the heavy wide elastic at a craft store and measured to fit my books and etablets and passed it through the slots and stitched it closed.I had used SVG INKSCAPE to do the graphic. Tinkercad to do the stl for print, and Mona ( a Makerbot 2x named for sounds it