A couple of years ago, a group of entrepreneurs successfully Kickstarted a little something known as the Chameleon Pen. In a nutshell, it's an art pen that changes color tone as you draw – for example ...

The Chameleon Color and Blending System Set 5 is an art enthusiast's dream, offering a versatile combination of Chameleon Markers and Chameleon Color Tops. This system allows for endless color ...