I think this is a depiction of whipped cream on a cup of, I guess, hot chocolate.

An unusual trend (and maybe it is widespread, and maybe it is somewhat wacky) has a local chapter: Frederick Rocks. As noted in a local news article, "... the idea is to paint rocks with positive messages and images on them, hide them throughout Frederick County, Md., and whomever finds them can either keep the rock or hide it again, so the process can be repeated."

1) Apparently some people have too much time on their hands; and 2) I did not fawn over this rock, nor toss it in the nearby creek, but just pushed it further back into the fencepost mortise; and 3) people nowadays don't realize the sanctity of a battlefield where men fought and died, so they do frivolous stuff.