Summary: straw covered with a cloth It is firm enough so that if you know what you are doing you can get the naan dough to make good contact with the side of the tandoor It is pictured below Armed with the tool the next step is to heat up the tandoor It took about two hours for my model pictured below to heat to the point where the walls were nearly 700F
Image Dimensions: 1024 x 768
Image originally found here.