I agree, there’s TONS of interesting stories out there they could mine for princesses that represent a much wider base than they’ve already got, but my point was that each princess really is an individual with her own story and background–they’re not one story retold over and over. And it’s that assumption that rubs me the wrong way and makes me go, wait, am I the only one who watched these movies? sometimes. And while there are a LOT of cultures not represented (by which I mean more than ethnicity, but that too) yet in the Disney lineup, there are still quite a lot represented within the 13 current Disney Princess line. (And far more if you go to the Disney universe in general.)
Keeper of Belle's Gold magic, sand dollar, cloaks, purple FTL outfit, spell scroll, library key, copy of Romeo and Juliet, and cry-muffling pillow, Rumple's doll, overcoat, and strength, and The Timeline. My spreadsheet: https://drive.google.com/file/d/0B6r8CySCCWd9R0RUNm4xR3RhMEU/view?usp=sharing