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.
mocs mocks mics mycs macs mogs micks mucus micas makos macks mucks mokes macaws mucosa mucose mucous mucosae mickeys moggies megs migs moxa mugs mags magus makes miggs mikes moxie muggs