A Shock Pen is a novelty item designed to deliver a mild electric shock when someone attempts to use it for writing. It resembles a regular pen, making it a surprising prank for unsuspecting users. The shock is harmless but can startle the person using it, creating a humorous reaction. Typically used in playful settings, the Shock Pen is popular among pranksters and can be found in novelty shops or online. It serves as a lighthearted way to entertain friends or colleagues, but it is important to use it responsibly to avoid causing distress or discomfort.