Performance collaborators at work! | CITIZEN PATRIOT • GEORGIA RHODES..Brooklyn resident Marilyn Bortz, left, and Concord resident Mandie Causie, co-owners of Sew Stoppers, 203 N. Main St. in Concord, work together to glue rhinestones on a baton twirling outfit they designed for an art exhibit at the University of Nevada in Reno. The two will be taking six total outfits to Reno on the 24th of this month, along with the shops third owner Concord resident Sandy Neely.