Thank you! Yes, it is 3D printed. The box is made of 3 parts (front face, backplate, battery cover. It is held together with heat-set inserts. The "nuclear sign" is also 3d printed from two parts and then they are snapped/glued together.

Three things I learned from the play-test with the end user (my 1.5 year old nephew):

- The corners and edges are a bit sharpish. If I would do it again I would add more chamfer there. (No actual accidents though, other than that it tore the wrapping paper while in transit :))

- Having a bunch of different buttons was really good. Some were harder for him to actuate, but he kept playing with them for weeks (with interruptions of course), and eventually managed to activate all of them.

- The parents deemed the LEDs too bright and applied some tape to dim them. If I would do it again I would wire one of the many potentiometers to regulate the brightness.