I made a cold smoker.
When we bought our grill we picked up a stainless box for wood chips for some reason. We have never used it.
I was going to make a tin can smoke generator but I remembered this unused (and not cheap) box. Put a 1/2 inch hole in one end so I could put the soldering iron in but failed to notice the set screw for the tip. No issues, took the tip off, put the iron in, put the set screw back. Now I can't lose one without the other.
I am using the grill box as the smoke chamber and have some cheddar and Havarti in there with some apple wood chips.
I will take pictures and post as the process goes.