Nautious Jumping Snakes were one of the sweets sold at Fred and George Weasley's shop in Diagon Alley, Weasleys' Wizard Wheezes. It looked like a Stick-O Wafer stick that was popularly known in the world of Muggles. Described on the packaging as "Venomous Vertical Sea Snakes", Nautious Jumping Snakes were therefore probably joke sweets.