In general, he says funny signs work best. (inc.com)
This warm and funny sign adds beautiful... Good sub headers for dating sites. (myintimcity.com)
On Saturday the world enjoyed the long anticipated March for Science, which transformed Earth Day into a global defense of STEM, led by quietly spirited people undaunted by weather, buoyed by conviction, and waving an unlimited supply of wry, funny signs. (fortune.com)