Our possible subjects included controversial topics and energy and the environment.
Years ago, in 1985, I took the train every day from west of Tokyo to inner Tokyo to attend language school. I marveled at the many residential rooftops decorated with solar panels in a tiny country better known for snow than for natural energy reserves. By contrast, in 2013, I am surprised and dismayed to see little evidence of residential or commercial solar power in sunny San Antonio.
So I used a non-profit organization called Solar San Antonio as my "client" and made versions of this poster. This version is bordered with black to imitate attaching it to a black mat board.
In case anyone wonders, most solar energy panels look dark blue because of the silicone used in them, although other materials may be used in some panels.
A later version , more Constructivist with all capital letters: