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.
whydahs whidahs whats whids wheats whiteys wads weds wats waits whits watts whets weeds wides wadis woads wades woods wadies whites widows waddies whities widdies woodies
whydahs dahs heydays houdahs howdahs keddahs maydays odahs paydays whidahs chuddahs yodhs