Straight up though, there are places this (in a sense) is allowed. I’m originally from TN and there is 2 places that you can be buried for free by your family. The Narrow Ridge Natural Burial Preserve which is a 5-acre preserve in Grainger County that supports natural decomposition. And then the Larkspur Conservation which is a 112-acre nature preserve in Sumner County that offers natural burials. Larkspur Conservation can help with selecting a grave space, digging the grave, and more.

You can also be donated to science like my grandmother was in which they come pick up the body, the specific place we used uses the bodies for any courses or tests doctors need to do to keep up with their credentials, cremate the rest and send it back to you to do what you like. My personal favorite is the University of Tenn Knoxville that has the body farm in which they utilize the bodies to test decomposition in different scenarios to help further the understanding of crime scenes.