I have a square salt box made as a gift several years ago. I saw this and being a spinny guy, I gotta make it http://www.williams-sonoma.com/products/sku7755242/index.cfm?pkey=xsrd0m1%7C16%7C%7C%7C0%7C%7C%7C%7C%7C%7C%7Csalt%20box&cm%5Fsrc=SCH . I have magnets, but I'm looking for the correct stainless steel hinge for the pivot. The real spendy box on the next page uses both hinge and magnet. Help with sources?