I think will be better call this just quark. No coin.
This is my variant of logo:

http://oi42.tinypic.com/2i1fhpf.jpg http://oi41.tinypic.com/16h4w89.jpg
http://oi42.tinypic.com/2589f0m.jpg


Hope, you like this )
my addr: QWaY3wwTVnmcU9gvRb6RiqaMjS87gTg8nr