This app (certainly not affiliated with the makers of the Mindflex toy or the Mindwave Mobile headset) puts a Mindflex toy EEG headset modified by adding a 57600-baud TTL-serial-to-Bluetooth bridge radio (I recommend an HC-06 one) into a mode compatible with software for the Mindwave Mobile. The mode lasts until the headset is turned off.

For instructions on how to hook the Mindflex EEG headset to a Bluetooth radio, see: www.instructables.com/id/Mindflex-EEG-with-raw-data-over-Bluetooth/

ANY EEG HEADSET MODIFICATION AND USE OF THIS SOFTWARE IS AT YOUR OWN RISK. MAKE SURE YOUR HEADSET IS NOT CONNECTED BY WIRE TO ANYTHING PLUGGED INTO THE MAINS.