As some businesses reopen and others try to stay in touch with employees working from home, companies are opting for coronavirus-related corporate swag — branded sanitizer bottles, “clean key” tools for pressing elevator buttons and, above all, masks — joining the tote bags, travel mugs and USB flash drives that have long defined company giveaways.“It feels like 70 percent of our orders has a mask in it,” said Michael Martocci, founder and chief executive of SwagUp, despite not prominently promoting masks on his site. “Everybody wants it.” Some companies, such as Dunkin’ and Bloomingdale’s, are selling face coverings with brands, distinctive …
