When smoking Gary's world famous baked beans I, as well as others, use the tinfoil pans. I was at a yard sale and thought that instead of purchasing the disposable foil pans that perhaps I could smoke in this older roaster.
I use one of those as my water pan in my offset... i would assume most oven safe containers would be fine in a smoker so long as they are not exposed directly to the flames. And even then im not sure it would be a big deal for most options. I do like dirtsailor's idea better in general.