Isn't decorating one's self with feathers, flowers, shells, etc, kind of a human universal? If so, wouldn't that include indigenous Europeans? These don't look like attempts to copy Native American-style hats.
I don't know about the implications of the headdresses, but from that photo sampling it appears all the serious babes were there last weekend, rather than CHBP.
OUTRAGE!!!!!1 Apropriashunists!!!!!
Life is so cruel.