Very cool designs so far!  I would like to enter my submission as well.  With all the merchant adoption happening this year, I thought it would be appropriate to do a design that commemorates merchants, naming the coin, "Year of the Merchant". 

The front of the coin features a young merchant peddling her wares. The series of dots and dashes around the inner edge are actually morse code, spelling out "Vires in Numeris".

The back hologram continues the merchant theme by featuring a merchant's stall with the public key. That's pretty much it in a nutshell.

http://i.imgur.com/ePYxgjy.jpg?1