I don't know, I've always had a soft spot for the McGuyver stuff, especially on vacation. I'd think that if you bought a few large aluminum baking pans, a small roasting pan, a roll of heavy duty aluminum foil, some tin snips, and some of the real metal duct tape, you could fashion yourself a fairly decent smoker. I wouldn't rely on it working, but I would absolutely give it a try. The worst case is, it won't work and you have fun building it anyway and the best case is it works well and everyone is impressed with your ingenuity and the wonderful food you make. The main concern IMO would be airflow.