The cauldron is tilted by 1 servo motor and the mini cubes representing the coins are poured out. 1 blue LED lights up in the cauldron, which goes out when the mini dice are ejected from the cauldron.
The construction of the cauldron is the same as P2, but 1 infrared sensor is added. When this detects that the boy is placed in front of the infrared sensor, 1 servomotor will tilt the cauldron and 1 blue LED will go out.
The construction of the cauldron is the same as P3, but with the addition of 1 sound sensor and 2 LED strips. When the infrared sensor detects that the boy is placed in front of the sensor, 1 servo motor tilts the cauldron and 1 blue LED goes out. Then the LED strips will light up like a running light, like a light anchor, to represent the flow of gold money.