If you search Google for Hanukkah, Christmas, or Kwanzaa, you'll see some special holiday icons in the left navigation and decorations between the organic results and ads on the right on Google search results page.
In honor of Hanukkah, Google replaces its usual "Everything" icon with a dreidel, when you search for [chanukah]. The dreidel is a popular toy used by kids during Chanukah. Also, on the right hand side you gets some Hanukkah decorations!
In honor of Christmas, Google replaces its "Everything" icon with a Christmas tree, and includes some Google colored ornaments on the right:
And in honor of Kwanzaa, Google replaces its "Everything" icon with a flag, and vertical red, black, and green candles on the right:
Here're the regular Everything icon:
Google has done this since 2005 but has since the left hand navigation is new on Google, this is the first time the icons being replaced by holiday icons.