How can you make an eraser out of clay?

To make an eraser out of clay, you will need to mix together a type of clay that hardens when baked, such as polymer clay, with a small amount of mineral oil or baby oil to make it more pliable and easier to erase with. Shape the clay into the desired eraser shape and bake it according to the manufacturer's instructions. Once the clay has hardened, it can be used as an eraser for pencil markings.