Google has just added the Kwanzaa decorations to the top bar, when you search for [kwanzaa] at Google. Here is a picture:
So that completes the trifecta:
(1) Google's Chanukah Decorations on December 19th:
(2) Google's Christmas Decorations on December 21st:
(3) Google's Kwanzaa Decorations on December 22nd:
Happy Holidays everyone!
Forum discussion at Google Web Search Help.