It's actually a functional mechanic for swapping between different colors of ink, plus an eraser cartridge. Remember those four-color pens from your childhood? It's that, but with an automotive ...

This pen can make your mistakes vanish, just like magic. It is called the HeatVanish Pen and works by using heat sensitive ink that turns clear when hot. The pen is equipped with an electric ...

Carve away the surface of your eraser to create a pattern, then coat it in ink to start stamping. This is a great way to add your personal touch to documents or stationery. The stamp can also be ...