Conrad Barsky, author of Casting SPELs in Lisp created a really cool logo for Lisp based software projects.

Why an Alien Lisp Mascot? To most programmers, Lisp seems like an entirely alien language at first- One thing that I think the Lisp community has failed to do is convince other programmers that this strangeness is not an arbitrary obstacle, but a necessary adjustment that imparts great power to programmers that would otherwise be unattainable. The alien Lisp mascot and quirky logo designs are designed to accentuate the awesome (and, to most people, alien) power that Lisp languages have- At the same time, they show how fun Lisp programming tends to be and that Lisp has wide appeal far beyond the stuffy academia it is sometimes wrongly associated with.

Five years ago I attended the annual conference for senior associates of the Foresight Institute. One of the speakers was Vernor Vinge talking about the Singularity. I've made a short clip from his presentation available as a Quicktime video [3.4MB]. Vinge's lower margin for a hard takeoff is 36 hours. I'll try to unearth the actual tape of this presentation and make it available online.