Strangest thing found in your A body???
My red '64 used to get this nice, toasty, something's-in-the-oven smell every time i'd put the defroster on. Pulled the hoses off one day - mice had stashed a few dozen hazelnuts down the defroster vents (fins were sun/dryrotted away).
My '64 Signet parts car had enough molted snakeskins in it to make a pair of boots. Under seats, inside doors, on top of the motor, all over the interior, etc. Didn't find any live snakes, though.