Apparently German builder Quanix knows about engineering with LEGO something that I can refer to simply as “magic”. With only 3 Power Function motors (plus 1 servo-motor) he somehow controls 17 independent pneumatic cylinders, which are capable of moving 1200 LEGO basketball/soccer balls around the circuit in an hour. This monstrosity is built with more than 3,000 LEGO bricks including more than 150 cm of conveyor belt.
Not sharing a video of this beauty in action would be a terrible mistake. Make sure nobody disturbs you during the next 10 minutes of this mesmerising performance: