Neurosky was at this year's Maker Faire Bay Area. The big draw at their booth was the Necomini brain-controlled cat ears. Their maker, Neurowear, sells a tail now too.
Also spotted at Maker Faire was the Puzzlebox Orbit, a mind-controlled drone. It's from the folks behind Puzzlebox Brainstorms, open source software for brain-computer interfaces and neuroscience education. After publishing free plans and code for controlling RC helicopters via brainwave data from NeuroSky and Emotive headsets, they Kickstarted the Puzzlebox Orbit as a finished product late last year. Their goal was $10,000 and they ended with nearly $75,000. The Puzzlebox Orbit is now on sale $250. The best part is that you can still build your own by following the HOWTO over at Instructables.