This is really great! We should make a "white" version too.
This is such a great design that we could probably make t-shirts/leather jackets with this coin on it.
Thank you for the kind words! Looking forward to see the first NEM leather jacket.

I have also added a light design:
http://farm8.staticflickr.com/7400/12316730113_bbf4402f3a_n.jpg