An easy to make box.
Measurements: 7.6 cm wide, 2.6 high(with lid), 7.3 deep
I added a kind of clam which holds the box close during transportation.
In the hole in the hinge fits perfectly a piece of filament from the plastic for the printer. The outer ends I heated with a candle and pussed it against a tile in the kitchen. This forms a little button like end and it looks much better.
It was printed on Ultimaker. The lid took 3:48 hours and the box took 5:21 hours.