Cherese has been making XXX tough heavy duty tug toys to make training a fun and interactive experience. They are a total of 3.5 feet long, made from 1" 100% cotton rope with nylon cording (mostly to add colour!) The cotton rope is gentle on the teeth, and works as a dental floss at the same time. There is a tug handle braided into one end for the handler to hold securely, and a tennis ball (or 3 tennis balls) to encourage your dog to interactively play. These toys are much more durable than what you can buy in the pet stores and superb quality. $18 for the single ball tug, $22 for the triple ball tug. Comparable products have been found in various pet stores starting at $30.
Better pictures to come. I can't seem to make it fit properly into the web layout. Sorry!