I used an old pillow case wound up real tight and taped but I got a little careless one day and blew a hole (burned really) in it. I decided it was time for another one and had an old burlap bag which I proceeded to roll up tight like the other one and tape it tight. I have been using that bag as rest for over 24 years now. It is a little soiled and has a powder burn or two (not bad-just scorched) but otherwise it is still going strong. Serves my needs anyway as I am not a ballistic nerd. james