Meet the Ultracortex EEG Headset: an open source, 3D-printable headset that works with the OpenBCI port to provide you with research-grade brain activity data. The Ultracortex Mark 3 is capable of sampling up to 16 channels of EEG. It comes with a 3D-printed frame, electrodes, and every other part to get started.
The kit does require assembly, but the process doesn’t seem that hard. You will also need batteries. More information is available below.