I have a lovely stream at the end of my yard. The house and grounds will be in a trust for the children. I hope to be creamated and have the ashes spread near the stream. I hope to have a marker incorperated into the stone wall near there, in memoriam, with my name and dates and some nice words. It would fit in with the wall and over time, I would leave little.
Sounds like a plan...but not for a long, long time.