While driving along the Mother Road in Calumet, be sure to make a pit stop once you spot the Muffler Men Mural. Located along the Calumet stretch of the Mother Road near El Reno, three 18-feet-tall Muffler Men appear in mural form. Artists John Cerney and Scott Farmer paid tribute to the traditional fiberglass Muffler Man figure of the 1960s with their painted Paul Bunyan, Uniroyal Gal and dancing gas station attendant creations.