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.
kicky kick caky coky keck kike quick kooky kaiak cocky cooky quacky quickie cock guck kaka kaki keek kook
kicky dicky picky icky ick coky nick quacky pick lackey pecky hickey sick mickey sucky wrick rickey sicko jacky ducky tacky wacky wick chucky rocky quick rick cocky hick lick mick jockey mucky hoick kick lucky caky dick pocky dickey hockey dikey tackey tick whacky chick yucky
kicky kick ick rick tick picky dickie pick dick nick sickie mickey sick mick kike lick keck icky hickie hickey hick rickey sickee sicko dickey dicky wick