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.
mus muss muse moues mussy mouse mousy meous mas miaous mousey mos mis mousse mesa mays moss mews miss mass mows moos miso masa maws mise mess maes moas messy massy moose mossy masse massa missy mosey mosso meows muzzy miaows missay