Signs in Montclair, New Jersey

Here are two pictures of the signs in Montclair, New Jersey, that have taunted me over the years I've seen them but never had a camera with me.  The scooper's arm is incorporated into the letter "d" and the dog is the bottom part of the "g" (I guess).  Does the dog have a balloon tied to it?  Your guess is as good as mine.

There were several of these signs on the sidewalk outside the Mount Hebron School

Mount Hebron School is visible in the background, in Upper Montclair New Jersey