Someone should somehow make a biohazard sign out of Zs. Just saying.[/quote]
Good idea! If you guys are still looking for a logo, I had a quick crack at it:

The first one has smaller but more characters, so that the curves look better.
In the second one you can see the Zs better, but the logo looks more pixelated.
Tell me what you think.
Edit: Uploaded the images to imgur. Thanks n9103 for the heads up. Hope it’s visible now!