One of the main things that we noticed and which is reasonable is that people do not want to stick a circuit board to their chest. So, we set out make a simple enclosure. These have been the results of our efforts so far. These are 3D printed on a Makerbot using PLA. We will come up with a more elegant enclosure in the future. Our goal here was to make the enclosure as thin as possible so as to not obstruct the user's mobility too much.

Red because it was nice :) .

We have holes on the back for the two electrode snap connectors.

The two halves snapped together. It's still quite thin. Shown here is the USB port connector used for battery charging and debugging.