Cartons rhymes with:
barton's, martens, martin's, barton's, kindergartens, maertens, martens, martin's, mehrtens, morton's, norton's, shortens, thorton's, weirton's, wharton's
Cartons sounds like:
cardenas, cardenas's, carotenes, carting, cartooning, cartoons, chardonnays, charting, cording, cortens, cortens', cortinas, cortines, courtemanche, courting, crating, creating, creations, credence, credenza, crediting, croatian's, croatians, croatians', crowding, curtains