The first Gary Johnson sign wave of which the state party is aware took place last Thursday in Springfield. Bill Boone, Chris Burros, Cecil Ince and Kenton Merrill participated. Kenton Merrill, pictured here, put together a Springfield for Gary Johnson 2016 Facebook page.
It's a great idea if you'd care to duplicate it. They used signs scavenged from the national convention. Never before used signs are available at the Gary Johnson webiste--2 for about $25 each, 5 for about $15 each and 10 for about $12 each, after shipping. https://garysgear.com/