RARE Kellogg's Rice Krispies Crackle from "Snap, Crackle & Pop" Figure Topper

This is a Kellogg's Rice Krispies Crackle from "Snap, Crackle & Pop" Figure, Topper.----- It has Crackle written in the cap and Kellogg Company, Made in Taiwan stamped on the bottom.------------ It is made of flexible plastic or rubber. I can not tell which. I am not sure what this figure does. It seems to be some kind of topper for a bottle ???????------------------Maybe part of a Game?? Not sure of the age. It is probably something that I got in an advertising promotion and my youngest child is 47 years old and my oldest is 55 so I would guess at least 50+ years old. I just can't remember anything about when I got it or what it does. It still in great condition. It is extremely Rare as I can not find another one on Internet anywhere.