Honestly, I am sad but not surprised. Google implied that they are not doing holiday decorations this year, instead they were doing games in the search results or in other sections of Google.
After not seeing any Chanukah / Hanukkah decorations by the fourth night of Hanukkah and repeated emails to Google on where are they. Google told us "No, G is not for Grinch. We might not be decking the halls of our search results pages this year, but we're still spreading holiday cheer in a few other ways throughout the season." They showed us the spin the dreidel game and Santa trackers. But no decorations.
Well, that seems to have been misinformation. Now, if you Google [chanukah], [christmas] and [kwanzaa] you will see the decorations for 2015. I guess it is better to have them show up on the second to last day of Chanukah then never show them?
Here they are for 2015 (click to enlarge)...
Chanukah:
Christmas:
Kwanzaa:
Here are the holiday decorations for the previous years including 2014, 2013, 2012, 2011, 2010 and so on.
Forum discussion at Google+.