If someone wanted to create a similar graphic here are some sources for the images
- Golden Gnu meditating (also the Golden Gnu listening to a CD)
- Tux the Linux Penguin
- Beastie the BSD Daemon (also this reasonably good version of Beastie)
- Hexley the Darwin Platypus
- Puffy the OpenBSD Fish (the version above is "Cartoon Puffy")
Another similar sort of character:
- SUSE Samurai (other versions available on the Novell Logo page)