I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
macule maculae macle mackle macula mickle muckle maquila mogul meikle miggle muckily muggily
locule macule heckle vacuole fecula fickle ekuele facula buckle bugle bacula boucle beguile mackle macula quale aculei clew muckle nickle oculi picul ruckle cycle scull socle deckle tickle chuckle ligule cackle faculae guile keckle clue cockle huckle hackle feculae fugle ligulae cole caul locale coulee cull macle loculi maculae mickle knuckle nuclei pickle rackle cicale scale sickle suckle tackle chicle shackle
mac macaw mack maguey maqui smack