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.
mamboes mambos mambas mameys mamies mammees mammeys mammies mimes mamas memes memos maims momes mammas mimeos mommies mummies mems moms mums momus mumms mumus mommas muumuus
bimboes mamboes umbos dumbos sambos mambos lambies jumbos limbos gumbos gambes coombes combos combes moues gombos imbues embows emboss bombes bimbos bamboos ambos jambes momes zombies tomboys shmoes mos