Trying to get the kid interested in the whole Mars Perseverance landing. The concept of landing something on another planet isn't making sense to a 4 year. In the end we had some fun.
For the geeks, the Arduino on the base runs a plant model for the gravity/thrust relationship. Then a button is used to fire the thrusters. The audio comes from a python script which also provides a GUI to see the landing velocity, distance, and fuel.