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.
futtocks vodkas
bittocks mattocks futtocks buttocks stocks redocks shaddocks reattacks stooks haddocks stoics ticks sticks attacks retacks tucks ruddocks paddocks stacks tokes piddocks stokes tacks deticks docks shticks