Volunteers filled the workshop at the Quinlan Visual Arts Center on Saturday to add their creative touch in helping put together the “veterans parklet” at the center’s grounds. Ron Hoopes, a Vietnam veteran who finished his two-year stint of duty in 1970, cut stained glass in various shapes and glued them in a pattern on a slab of stone. “I’m no artist, by no stretch,” Hoopes said, as he aligned the pieces of glass on a corner of the stone to represent a star on a flag.