Zoo ad

http://justcreativedesign.com/2008/07/30/192-of-the-best-smart-clever-creative-advertisements/

I really like this ad.  It's really simple, just a sign for the zoo on a lamp post.  The cool part is the giraffe on the sign.  The body of the giraffe is the lamp post, so it catches your eye.  It makes you pay attention to the ad.