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.
mosaics musics musicks mosks mousakas moussakas miscues mosques muskies masks musks masques
mosaics sacs sics sacks sakis sicks basics fossicks physics cossacks musicks musics towsacks