Use it to organize all your memory sticks, USB cables, or as I do, key ring parking using old USB plugs as part of the keyring so you can just plug your keys in the wall.
It has screw holes but doublesided tape does the trick.
It's easily printed and fits all printers vigger than 13cmx13cm print area
there are grooves in the slots that will allow for different layer widths of all kinds of printers. (I've printed it on 3 different brands so far)
Print time with 0,4 takes roughly 1 hour