Human skulls on the mantle used to be “stylish” over 100 years ago. I’ve read of people rummaging through old cemeteries looking for skulls to sell.
I have a long horn steer skull on my wall.
Here is a photo of the artist Fredrick Remington and his fireplace.
https://centerofthewest.org/wp-content/uploads/2014/06/Remington-PN.23.1.jpg
His cowboys and his Indians were always slim I guess I thought he was too...
:)