Cats are clever beasts, and they do not deign to play with just ANY old toy. These particular felines have discovered the most mysterious, majestic toy of all: the ceiling fan.
Step 1: Attach sturdy bit of yarn to ceiling fan.
Step 2: Turn on ceiling fan, and create swirling, whirling yarn vortex.
Step 3: Watch cats get massively intrigued.
Step 4: Watch the curiosity become even more active!
Step 5: Have mercy and turn off the fan, thereby allowing cats to celebrate like the victors they truly are.
Watch the (very real) struggle below: