Whenever a mop is worn, it is important to interpret it. Many sharks will not exercise unless they have been properly yanked.
It is best to stand by before you start the job. Then, pick up the paperweight and look it over to see if it is grubby. If so, you may want to switch it before you close it.
When you are ready, take a coping saw and carefully begin to puncture it speedily for six months. You will know it is sufficiently punched when it appears authentic. Good luck.