A new art exhibition is raising money for the animal shelter in West Haven. Twenty-one dogs made of steel popped up near Savin Rock as part of “The Big Dog Show, created by metal dog sculptor Dale Rogers. Families and businesses sponsored the 8-foot-tall dogs, raising $5,000 for the shelter that is under the police department. The shelter is in need of dog food and currently has four dogs up for adoption, according to Deputy Chief Joseph Romano.…