Molded after a human skull, and first discovered in the hands of a sacrificed skeleton, the Aztec Death Whistle lives up to its name as the most terrifying whistle ever constructed. Representing the Aztec gods of Death and Wind, the whistle's internal scream chamber cuts and whips blown air to produce blood-curdling 125-decibel shrieks. Like a screech that wakes you from a nightmare, the whistle replicates a human scream with spine-tingling accuracy. While historians still debate what these hair-raising resonators were used for in the past, today they're a creative way to show off your spooky spirit and an unforgettable scare prank. With the right hand movements, you can even harness the howling winds into an ancient instrument! Just make sure you hold your concerts during the day because waking up to the whistle's horrifying howls in the middle of the night is as petrifying as it was 700 years ago.