I am not sure what kind of cooker you are working with. On my cabinet smoker, (which is gas), I use a stainless steel hotel pans. I have one for chips and then another one above it for the water. It works great and I get the pans from my business (own a scrap yard) for like a $1-2 a piece.
Homemade Wood Smokehouse, Charmglow gasser, Smoke Hollow, UDS, dual chamber homemade grill
Certified MOINK Baller
UNLINED DRUM KING OF CHICAGO AREA
Scrap Iron Chef