Institute of Contemporary Art, Philadelphia exhibit called The Happy Show by Stefan Sagmeister that just ended its tour at the Institute of Museum of Contemporary Art, Los Angeles Pacific Design Center. In this display, included in the exhibit, people were instructed to select one gumball from column that indicated their level of happiness (1 to 10). The bar chart of the happiness level of those that participated is shown in the negative space above each column, showing how many gumballs were removed. Median happiness here looks to be about a 7. We've seen a similar exhibit before.