Nail the lid of the teapot. The more nails, the better. As a handicraft for repairing teapots or residual teapots, shovel-shaped teapots are exquisitely made. Generally 1 cm has three shovel nails, which is the most suitable. Shovel nails should be made according to the crack shape of teapot. The smallest copper nail is only 2 mm, and the size, arrangement and drilling depth of shovel nails are strictly emphasized.