got to
www.carvingpatterns.com that's the L.S. Irish pattern site. Look down the page for 'carving a chain and ball' If you follow the kinks, it will get you to a free patten with instructions for carving a spoon with a chain attached, but there is another page with designs for a plain chain. This should be downloadable for no cost. There are also reasonably priced individual patterns and pattern sets.
Al