Ian Pratt and I were discussing the fact that open source Xen has no “mascot” like other open source projects and we joked about some possibilities (see my list below). I am curious to see what ideas the community has for a “mascot”. NOTE – this is just for fun and I don’t anticipate Xen having a mascot anytime soon.
JabberJaw - 
Kenny the Shark – 
Building on the history of the name “xen”, how about a cartoon alien? Looking on images.google, I kind of like this one:
http://www.orange-apple-soup.com/AlienCartoon.bmp
Another response from community:
I think it’s a great idea and I think a shark is a good start.
However, it’s a bit too aggressive for my taste, so here are two of my ideas. Only in text form though, cause I suck at drawing, but maybe it’ll give you some inspiration:
1) Racing Turtle (no, this is not ment as an insult to Xen
):
Basically a turtle, standing and wearing some old fashioned racing or flight googles and running shoes.
2) Flight Traffic Ferret: A ferret in some kind of uniform (not too much uniform though) and with two of those stick-like flight directing lights (don’t know the proper name, hope you understand what i mean) in its hands.
From the general theme, the second one would be my favorite, but ferrets don’t have many distinguishing features that could be drawn in a style like the Linux penguin or the BSD devil for example. Might depend on the artist though.
I vote Miyagi.