I know that some of you guys make quilts with these things and wondered if you used new sacks or just the vintage. I saw a pack of 12 at Sams for $12.95 or something like that so I grabbed them just incase. My next question is.... If you can use these, how can you tea die these so that they aren't stark white? I read somewhere on here that you can do this just have no idea how. Thanks in advance for any input you guys can give me.