To serve, heat up a mug full of milk in the microwave or in a small pan over a medium low heat and stir in your chocolate stirrer until fully combined. Top with extra sprinkles, marshmallows or ...

The magnetic stirrer uses a 3D-printed enclosure for the base. Inside is a PWM controller which sends power to a small DC motor. A 3D-printed arm is attached to the motor, which hosts a pair of ...

The motor is then fitted with a small 3D printed spinner containing two magnets. A similar 3D printed part acts as a stirrer, and is fitted with a matching pair of magnets, and dropped into the ...