Reddit mentions of Wacom PL-900 Pen, UP-817E

Here is one: http://www.amazon.de/gp/product/B002EQ2X44/ref=gno_cart_title_1?ie=UTF8&psc=1&smid=A8KICS1PHF7ZO

It's made by Wacom, has two buttons, an eraser, and replacable nibs. I'm using it on the Surface Pro 2 and it works just fine.

Long ago I used a wacom graphire digitizer, and I loved the shape of the pen and various buttons.

I was able to find a similar stylus that does work with the SP2. It has an eraser, and a dual button rocker switch. Lots of SP1 users recommended this stylus online.

I also found replacement nibs of various materials for it. Unfortunately the grips aren't compatible, but the nibs all fit and provide different feel. (Nibs are not compatible with the SP2 default pen.) I'm really happy with how it feels in my hand although I'm still working out the calibration issues. (Issues are operator issues, not hardware issues as far as I can tell.)

I also applied a matte screen protector that together with the pen feels like drawing on paper.

I can recommend this one, its very expensive considering the cheap plastic feel to it but has a nice shape, two buttons and an eraser

amazon germany:

http://www.amazon.de/Wacom-UP-817E-PL-900-Stift/dp/B002EQ2X44/ref=sr_1_1?ie=UTF8&qid=1398056522&sr=8-1&keywords=up817e