Arkan sonney is the Manx term for hedgehog. In Manx folklore it is a type of fairy animal that takes the form of a white pig that brings good fortune to those who manage to catch it. It was even considered a favourable omen just to have seen the "lucky piggy". It was also said that if you caught one you would always find a silver coin in your pocket. However, holding on to it for too long will result in bad fortune.