Men’s Scilly Billy Tee - Stone Washed GreenOur original design the Scilly Billy Goat is a great choice for those with a cheeky sense of fun. This classic is available in Navy or Vintage Navy. About Scilly Billy Billy is a salty old sea goat who has lived on St Martin's since he was a kid. A likeable character, he always has a story to tell and a joke to crack which often provokes the response, You're such a silly billy! He descends from a long line of proud Scillonian goats. His mother,