Are there any Marshmallow-compatible bluetooth styli?

I've bought a Nexus 9 as a gift for my daughter for Xmas. After reading that Android M added native support for Bluetooth styli, I'm looking to purchase one as an additional gift. I'm looking for a stylus that is highly accurate and supports varying levels of pressure and palm rejection, like the Wacom Bamboo Fineline 2 or Intuous 2. Those products only list Apple device compatibility, though. I realise that apps need to be updated to accommodate the new APIs in Android, but can I pair either of these with the Nexus 9 in the meantime?