Why not (opt-in to) use your body to provide nutrients for growth, and live on (in a way) via beautiful plants and vegetation? Tradititonal funerals/cremation don't make optimal use of the deceased's body - so why not use it to help grow new life?
What early, lightweight experiment might you try out in your own community to find out if the idea will meet your expectations?
Survey to validate/invalidate fears, worries, (horror!) and possible support for the concept.
What skills, input or guidance from the OpenIDEO community would be most helpful in building out or refining your idea?