Today is Flag Day in the United State of America and Bing, Ask.com and Dogpile all have logos and themes or mentions for the day. We even have a theme here, but Google and Yahoo do not. Here are pictures of the Flag Day themes I have found:
Bing:
DogPile:
Ask.com has a mention:
Search Engine Roundtable:
Now, Google does do Flag day type of logos/doodles internationally. It was Russia Day and check out this logo:
How about Philippine Independence Day:
Or Day of the Enamored in Brazil?
Google Japan also had a special logo for Hayabusa returning to earth:
An interesting mistake of some sorts also Doodle related happened over the weekend. Remember the FIFA logos, well, as reported at Websnoic.nl, Google Morocco, Egypt, Jordan and Algeria showed a special Doodle that should have looked like this:
For about 8 hours, the logo looked like this:
Something was corrupt about that image. It is now fixed.
Anyway, for all American's - happy Flag day. Note, all the logos above are within the past few days, so happy days to you all also!
Forum discussion at Google Web Search Help.