A bin of rubber ducks sounds like people screaming in anguish

ducks

Charlie Murphy of Ireland came across this shopping cart filled with rubber ducks (or maybe geese, or some other kind of waterfowl). Squeezing just one duck produces a toy horn sound, but smooshing down on a bunch of them at once produces a blood-curdling scream you'd expect from the Sixth Trumpet in the Book of Revelation.