There are several images related to the CCC which I looked for for quite some time. Probably the oldest is the Pesthoernchen (also as SVG):

While you can get the image above from the official Logos, you can’t get the lower ones (yet): Sterntastatur from 18C3 (Hacking Is Not A Crime) also as SVG:

You might like the inverted version (also as SVG):

There is a modified version which aims to be more like the original RAF logo by mimicking a shotgun (also a SVG):