FiftyThree, the company behind the award-winning Paper for iPad has created a companion stylus for you to sketch and create illustrations. Pencil by FiftyThree is a bluetooth peripheral masqueraded as a wooden pencil. The stylus features an eraser at one end, and both tip and eraser are plated with 14kt gold for enhanced sensitivity. It charges under 90 minutes through USB and has a normal use of up to a month for each charge.
The stylus is designed to work best with Paper app, you could of course use Pencil just as a stylus on other apps and touchscreen device. Pencil at USD $50 is available in graphite or walnut color and comes with an extra tip and eraser. You can purchase one through FiftyThree’s website.