Welcome to spira international home-built boat plans. spira international offers a wide variety of different power, rowing, and sailing skiffs, dories, and other boat. Model hobby wholesalers, also selling online to the public. includes history and online sales of books, articles and parts.. Hobbies supplies all the models, materials and tools you need for your hobby. visit our norfolk model shop or go online. #bringyourhobbiestolife.