Here's what rhymes with octupole.
pole bowl poll toll dole bole boll tole dolour whole role soul coal goal hole roll sole fol mole stole parole knoll shoal droll foal thole troll vole kohl prole patrol stroll cajole bedroll condole maypole skoal control scroll enroll systole casserole extol quadrupole petiole unroll oriole cubbyhole extoll beanpole rissole glycerol vacuole arteriole buttonhole pigeonhole camisole innersole decontrol profiterole