The piranha punch is the creation of mixologist tiki lindy, invented for her halloween spooktiki event. Its fruity, sweet, and just a touch bitter from campari (although you could use any bitter citrus apritif, including the sweeter aperol). This drink benefits a bold, full-bodied rum to stand up to the sweetness and cut through the rich guava nectar. Tiki lindy calls for lemon hart 1804 rum, but you can use any black, dark, demerara or aged rum you like. The splash of grenadine at the end isnt really for flavor; rather, its meant to evoke the bloody waters after a piranha feast Save your good stuff; neon-red, low-quality grenadine is ideal here.