Well if you have never seen what the corn flak resembles, your brain wouldn't create the perception that it looks like Illinois, and probly would have been eaten by the person that found it, I'm sure he/she glad that he didnt...
Just another way how the brain's perception of object's in the means of relation's to another object could make you rich.
reminds me of the thread about rolex wacthes. It's just a clock, and its just a corn flak. well in my perception of it's worth it is... and it's clear that they think its worth that much, just for a rich guy to show off to his friends, and say (hey look i got somthing you don't got)... makes me wonder what the resale value of that corn flak is :D!