Microbit Case with hinge & using paper clip to lock

As the original one is required to use small screw that which is not easy to find in my city, I modified it by (1) splitting the case into half rather than case and plate, (2) add a hinge, (3) add a side slit for inserting a paper clip as a lock and (4) increase 1mm thicker for the height of the case in order to avoid mis-press the buttons.

For fun~