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.....
“The enemy is anybody who's going to get you killed, no matter which side he is on.”
― Joseph Heller, Catch-22