Here is one gauge of the rekindled American enthusiasm for political protest: Sales of poster boards, markers and other sign-making supplies jumped more than 30 percent in the week before Donald Trump’s inauguration and the Jan. 21 Women’s March, according to data from the NPD Group, which tracks sales of consumer goods.
That week, Americans spent an estimated $6 million on supplies—not insignificant considering that many of the individual items cost $1 or less. Sales of foam boards rose 42 percent. Poster board sales grew 33 percent, and in the week before the inauguration, stores sold roughly one-third of the 6.8 million poster boards sold in January. Paint markers and fabric paint for t-shirts also sold more briskly than normal, said Leen Nsouli, director of industry analysis for office suppliers at NPD.