Yarn puff balls or beaver balls for me. If I couldn't use either of those I would probably use whiskers. Leaches work and are more durable than they used to be if put in right, but are just too expensive for me when there are other things that work as good or better for less money.

I don't like any of the rubber string silencers because you can hear this whipping sound when you let the string go. With the yarn or fur ones you don't get that noise.

Paul