I particularly like the poster this time out: the Great Smoky Mountains, Helvetica everywhere, and the central cluster of stars from the Tennessee state flag, which iconographically refers to the three quarks in the proton, but really refers to the three regions of Tennessee. It's pretty neat that the flag even has a Sol Lewitt style set of instructions associated with it:
Anyone want to try this without peeking?
An oblong flag or banner in length one and two thirds times its width, the large or principal field of same to be of color red, but said flag or banner ending at its free or outer end in a perpendicular bar of blue, of uniform width, running from side to side; that is to say, from top to bottom of said flag or banner, and separated from the red field by a narrow margin or stripe of white of uniform width; the width of the white stripe to be one-fifth that of the blue bar; and the total width of the bar and stripe together to be equal to one-eighth of the width of the flag.
In the center of the red field shall be a smaller circular field of blue, separated from the surrounding red field by a circular margin or stripe of white of uniform width and of the same width as the straight margin or stripe first mentioned. The breadth or diameter of the circular blue field, exclusive of the white margin, shall be equal to one-half of the width of the flag. Inside the circular blue field shall be three five-pointed stars of white distributed at equal intervals around a point, the center of the blue field and of such size and arrangement that one point of each star shall approach as closely as practicable without actually touching one point of each of the other two around the center point of the field; and the two outer points of each star shall approach as nearly as practicable without actually touching the periphery of the blue field. The arrangement of the three stars shall be such that the centers of no two stars shall be in a line parallel to either the side or end of the flag, but intermediate between same; and the highest star shall be the one nearest the upper confined corner of the flag.