If you hurry, you can see a fun “spherical fullerene” substituting for Google's second “o” at today's Google Japan.
You can actually twirl the molecule when you place your cursor over Google's second “o”.
This will only be on today (Japan time) — the day when Fullerene, C60. was discovered.
The fullerene also appears on Google’s Swiss site, http://www.google.ch.