I love your retroactive origin myths, especially the Soviet space dog, and the Z symbol is cool. The name isn't naturally sticky, if for no other reason than it will have to be explained to anyone who hasn't heard it before (unlike the admittedly unwieldy micro & millibitcoins).  I think it would need some kind of 'institutional' support to get the ball rolling, by which I just mean people in the community who can bring it attention.  I assume you've posted it to Reddit and reached out to the foundation/coindesk/let's talk bitcoin etc?