Just to let some of the sausage makers know. I buy my rings and heavy duty pliers from a place called the Fish Net company out of Mississippi, the pliers are very strong and the rings are dirt cheap, you buy them by the pound. Beats the heck out of anywhere else I found. Just thought I would share.
http://www.fishnetco.com/crayfish.htm
http://www.fishnetco.com/crayfish.htm