Spigen just put this up on ebay today:

http://www.ebay.com/itm/Nexus-6P-Case-Spigen-Thin-Fit-for-Google-Nexus-6P-/252149236503?hash=item3ab5440317:g:20cAAOSw5VFWM7wN

Looks to be released in December though. I was really hoping to find something like this, I don't want to lose the textured power button.

Edit: Also this one but I don't know the brand: http://www.amazon.com/REDShield%C2%AE-Flexible-Anti-shock-Silicone-Protective/dp/B015GBA6HE/ref=sr_1_10?ie=UTF8&qid=1446238392&sr=8-10&keywords=nexus+6p+case+ringke