Grand Illusions is offering a pen that does not need any ink but can still write on virtually any type of paper. The pen is about 8 centimeter long and there is nothing unusual about it until you unscrew the top. The nib is a solid piece of metal. The technology actually dates back to the Medieval Ages when artists and scribes used metal styli made of silver.
The pens we sell are a modern version (and do not use silver). The solid metal ‘nib’ consists of a metal alloy, that leaves a mark on most types of paper. If you use the sort of paper typically used in printers and photocopiers, the pen leaves a mark that looks as if it was made by a pencil. However the line will not smudge, and cannot be rubbed out.
The inkless metal pen is available for $29.38 USD directly from Grand Illusions.
Source: Popgadget