I have a cute set I got at Target recently - square plastic white with green & brown trim, the matching bowls are square too. They are a bit bigger than we usually use but nice. We have some really nice ones from World Market, square ceramic, green with a bamboo plant etched into it. They are smaller than normal.
I have some beautiful china I inherited from both my grandmothers but it can't go in the dishwasher and I am terrified of dropping a wet plate in my porceline sink and shattering it, so we never use them