Ostriches rhymes with:
mastrich's, mastrich's, gingrich's, gingriches, mastrich's, gingrich's, gingriches, greenwich's, kasich's, mastrich's, milosevic's, mladic's, povich's, sandwiches
Ostriches sounds like:
oesterreich, oesterreichische, oestreich, osterhaus, osterreichische, ostracize, ostrich, ostroski, ostrosky, ostrowski, ostrowsky, oysters