In the Lindenwood Park neighborhood, I found a pair of golf balls embedded in new pavement directly behind the Bread Co. on Ivanhoe at Sutherland:


A few blocks away, in front of the post office on Clifton, I found a trio of golf balls that seemed pretty worn down, as if they have been there for quite some time. The pavement didn't seem too recent.


Going down Arsenal, right next to Tower Grove Park at the intersection of Arsenal and Roger, I found a nice, fresh set of dominoes right in the crosswalk:


And then finally, in Benton Park West, I found another domino in a very strange place. At the intersection of Wyoming and California, on the edge of concrete and asphalt, I found a single domino next to a manhole cover. It was actually not even firmly embedded, as I was able to pick it up without any prying. Of course I didn't do that, because that would be an extra jerky thing to do. Regardless, check it:


-That nice building in the background of the photo was recently renovated, and really highlights the opportunity in that neighborhood. Oooooweee.
More and more, I'm settling on the idea of a city street worker or workers doing this.