I love the impromptu feel of this picture, like these girls saw others waiting to greet the Obama motorcade, screeched the driving school car to the side of the rode, grabbed a safe driving banner and some handy painters tape out of the trunk and went to work. I also love that this fun image, clearly, gets my imagination carried away and lets me know that I've clearly seen Ferris Bueller's Day Off too many times.

Saul Loeb / AFP - Getty Images
Well wishers hold up a sign offering their greetings as US President Barack Obama's motorcade drives past in Waialua, Hawaii, on Dec. 30, as Obama visits his friend Bobby Titcomb's house for a barbeque. Obama is spending the last days of the year vacationing with his family in Hawaii.