To build a smoker using a large clay pot, place a small hot plate in the bottom of the pot, and run the cord to the hot plate through the drainage hole in the bottom of the pot. Place a metal pie tin filled with wood chips on the hot plate, and set a grate in the top of the pot. Make a lid for the smoker by installing hardware in the drainage hole of a second clay pot.
To make a lid from a smaller clay pot, choose a clay pot with the same circumference, but that is smaller in height, and install a handle made from noncombustible materials in the pot's drainage hole. Choose a grate that fits one-quarter the way down into the smoker.
Another option is to make a smoker from a 55-gallon drum by drilling evenly spaced holes around the bottom of the drum. After drilling the ventilation holes, install four evenly spaced bolts 7 inches from the top of the drum with the bolts extending into the barrel.
Install locking washers and nuts on the bolts to form a platform for the grate, and build a fire basket that fits inside the drum using a grate and flexible metal. Set the fire basket into the barrel, and set the grate in place.