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Some comments on this video from Facebook:
I would say "unbelievable," except it's not. But, hey, now those kids know all about how to be "Indians."
And it's all so very "tasteful"! As "tasteful" as any other number of similar racialized party scenarios one might think up.
You've got your teepees, your drums, and your buckskin costumes. Everything you need to need to be a stereotypical Plains Indian from the mid-19th century.
Obviously the idea of throwing a Native-themed birthday party and making costumes, headdresses, and necklaces is stupid and stereotypical. Would this woman also throw an African-themed party with people wearing outfits from 150 years ago--i.e., grass skirts and bones through their noses? Why not, since it's exactly the same idea?
For more on why the party and costumes are a bad idea, see Tricking or Treating Indians and Indian Wannabes.