You are going to need to study up on some medical procedures after you impale yourself with the Pencil Puncture Appliance. This latex appliance features the top half of a pencil, eraser included, jutting out of a hole on a piece of flesh. It is lightweight and can be easily applied and adhered to the skin using spirit gum. Add some blood if you wish to make it realistic and gory. And this is why taking breaks while studying is highly suggested.