There are a lot of sports teams with Native American mascots and names that are a vestige of racism. Some teams have done away with these themes and some have defended them as "cultural history." I think that's bullsh*t.
These examples in general are about ignorance, intellectual lethargy, and cultural insensitivity rather than cultural appropriation. If someone started a team named the Northtown Negroes or New Braunfels Gerries --f*cking heads would roll.
A better example would be all of the words that people believe are English, but were borrowed. Pajamas, khaki, and jodhpurs are all Hindi.