What was the significant of the car key & the rabbit in eddies life ?

A young man has lost his car key somewhere in the park. A little girl named Amy or Annie, who has walked away from her mother, asks Eddie to make her an animal. He twists some pipe cleaners into a rabbit and gives it to the girl, who trots away happily.

Eddie is contemplating his 83rd birthday when a commotion interrupts his reverie. One of the cars is precariously tilted and dangling from Freddy’s Free Fall. Eddie makes his way to the ride quickly despite the pain shooting through his leg. Upon seeing the people hanging from the wayward car, Eddie takes charge of the situation. He calls for two attendants to evacuate the tilting car. However, Eddie does not know that the missing car key is jammed against a cable on Freddy’s Free Fall, where it has been slowly severing the thin metal strands. As soon as Eddie realizes the cable is about to snap, he reverses his command and screams for the attendants not to release the cart, but the frantic crowd drowns out his warnings.

The cart begins to slip and fall; two tons of steel come hurtling towards the ground. Eddie spots the girl with the pipe cleaner bunny standing on the platform beneath the falling cart. In a split second, Eddie drops his cane and dives for the girl. He is able to ignore the pain shooting through his body as in his desperate attempt to save her life. The last thing Eddie remembers is the soft touch of two small hands in his.