Haha, funny I had the same idea a few month ago, but no idea how to make it they are pretty cool, but I think you should take some kind of chain instead of the cord
Nice chucks how much is the weigth?
cord link length:3.751" diam ring11.75" Conduit 3/4" dia.12" 5/8" dia. wood dowel3/4" copper pipe cap3/4", 1/2" copper fitting reducer