Arkansas' rhymes with:
arkansas's, arkansas's, arkansas's, arkansas's, arkansas's, arkansas's, backsaws, arkansas's, backsaws, cha-chas, grandma's, grandmas, kadrmas, laboratoires, omaha's, panama's, tovaz
Arkansas' sounds like:
aerogenosa, arcanum's, arceneaux, arching, arciniega, arguing, arising, arizona's, arizonans, arkansas, arkansas's, arkin's, arousing, arrogance, arsenic, arsons, arzamas