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.
tittie tattie titi tutti titty tit dite tote tied toit tate tide ditto ditty didie tatty teiid tutee tutty dautie dawtie tattoo dit tat ted tet tot tut
cattie tittie hottie puttie tattie pattie tie bawtie tied puttee lotte dawtie matte pattee cottae cutie motte cootie lyttae fouette tote rotte tide bootie suttee vittae retie petti butte putti battue guttae fytte settee footie dautie tate latte tutti
titty tittie tit kitty tutty mitt toit bitt bitty vitta vittae pitta ditto ditty tattie tattoo tatty titi nitty tutti witty