Where do they sell cheescloth?! Bakery? I don't think I've ever seen it, not that I was looking for it. I'm going to put the apples in the cavity. Has anyone ever tried that?
Check any grocery store in the section where they have the assortment of tools. You probably haven't seen it because you haven't looked for it.
I usually stuff something in the body cavities of fowl when they go on the cooker. That can include apples, oranges, lemons, limes, onions, garlic and fresh herbs including sage, thyme, parsley and rosemary. Alton Brown includes a stick of cinnamon and I've done that with a recipe for tea smoked duck that called for it.