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 ...

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 heating element on the end which works as your rubber.

"Hi, I'm Arnie, and I’m here to bring you the wildest internet moments, viral stories, and crazy challenges! Be sure to follow me right here on Epic Reactions for all the fun! Doug Ford's ...