The Russian web slings have always been my favorites. They are very well made of heavy webbing, and are long enough to be used in a number of ways. All you need is a short piece of bike inner tube on the hook as a sound deadener, and youre good to go.
KVAR still has them at a reasonable price.....
"If the rule you followed brought you to this,
of what use was the rule?"
“The enemy is anybody who's going to get you killed, no matter which side he is on.” - Joseph Heller