So here are the details of the competition,
the cones are placed in a stack
and I need to pick them up and place them in cones like

and like
We have planned to build an elevator on a turntable to pick the cones up one by one and store the so that we can place them later. We are thinking of using suction to do so (plan B is to use a high friction claw using suction cup tape to squeeze them). We know that for suction there are a few types, using compressed air through a vacuum generator and using a suction generator like a vacuum cleaner directly. We are wondering if anyone have any ideas/experiences on building these suction assemblies