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 ...

Watercolor painting is a versatile and refined artistic expression which can be appreciated and practiced by novices as well as professionals. Fundamental to this creative medium are watercolor pens, ...

It may not be quite up there with manned deep-space travel or flying cars, but the quest for a pen that can write in virtually any color is one that has been with us for a while. A group of Polish ...

Back in the days of cubbies and desk islands, there existed an informal social hierarchy that centered around school supplies. Picking out school supplies was a central part of the school experience.

Pen "Color Picker Pen" which composes ink by color read by sensor and produces it When using a pen, it is necessary to prepare a separate pen such as a red ink pen when red is necessary, a black pen ...