My dad grew up in the '50s and played Cowboys and Indians. I love a good Western such as True Grit- the original and the remake.
For the most part society has agreed using Indian is not PC abd flat out misleading when referring to America's native inhabitants. Would a Cowboy and Indian themed party be in poor taste?
I live near several reservations and hear Native Americans refer to each other as Indians or members of the Tribe or use the actual Tribe's name.