24h clock for kids

When my kid turned 3 years old we created this clock to teach him some scheduling when it comes to time for diner, time for bed, time for playing, etc. We told him for example "when the needle touches this picture, it is time for dinner, so please, turn off the TV".

This clock helped us a lot and saved us several discussions. And when it turned 5, it helped us to teach him how the day works around 24h. He could see how when a day is ended it begins another day.

The clock runs through 5v coming from battery or mini usb. You connect the battery to the arduino nano board and it gives energy to the motor.

I am not gonna lie to you, this clock has a lot of pieces and have some challenges:
1) The code for controlling the motor. You have to know a bit of arduino programming.
2) The metalic center of the clock for the magnets. The solution was to buy a magnetic whiteboard and cut it with the exact measures.

Then, once you have the body assambled, programmed and running, there