The topic of string silencers come up quite a bit. What constitutes a good silencer? Obviously it dampens the sound. Cheap is good. field repairability is good, but durability is better. weather and bur resistance is nice. Nobody likes a facefull of rainwater when they shoot. So here is my simple and effective silencer recipe. I modeled it after some silencers a buddy had on his training wheels bow. Don't know if it is actually the same thing, but close. They was called tarantulas.
Cut up a scrap of fleece into a "square spider" shape. The number of legs is up to you. Mine was camo, but anything would work I am sure. Cost, $2.00 for enough to do 20-30. Baseball shown for size.
Wrap it around the string tightly, and tie it on in your preferred way.
Close up.
Next step.... shoot away. Mine have lasted several thousand shots. No burrs, no snow, very minimal rain... lightweight for the repair kit to stuff an extra in there. No affect on speed, but more importantly, (hopefully) the animal won't hear you shooting at it, and speed won't matter. Good luck.