What's the weirdest thing you've found in a car?

Below the LH quarter window in THIS car....
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I found 3 frisbees. One was a "Wham-O" . They were all plastic and had the date 1972 molded in them. The car is a '72 Duster. I wondered if the car owner threw them in the trunk and if they went up and over the wheel tub and settled there OR if they were stuffed in while the car was being assembled.