Bird dropping facials and snake massages may sound like something straight out of an episode of Fear Factor, but they’re really part of the growing list of strange options you might have at a luxury spa near you. An ancient Japanese secret often used by Geishas and available at Diamond Hawaii Resort and Spa in Maui is a facial that starts with Nightingale excrement, which is reportedly full of enzymes that help keep the skin smooth, clear, and white. Or maybe a Hakali massage is more your style at Apuane Spa at the Four Seasons Resort Punta Minta, Mexico, where spine-free cactus paddles are used to rub in an alcohol called ‘pulque,’ which comes from the agave plant and is in the tequila family.