sign flyer
n.— «The first thing you should know about David is that he is not a panhandler. He was quick to explain the difference to me. “Panhandlers are those guys you see milling around the 7-Eleven shaking their cups at you.” David calls himself and his comrades “sign flyers,” because “the sign does the talking and [his] feet does the walking.”…For example, sign flyers are also known as cardboard technicians.» —“Beggars can be choosers” by Dina Chaiffetz Denver Post (Colorado) Aug. 5, 2007. (source: Double-Tongued Dictionary)