Just throw me in the trash.
On the other hand, I am an organ donor, and wouldn't mind someone getting a better life from parts of my body. Unfortunately, the lungs, kidneys, heart, and liver are all pretty much beat to shit already, but they can take whatever works.
If I cared about what happened after I died, one interesting idea would be to have your ashes bound to something lipid soluble and injected into your friends, so that they'd always carry a piece of you around with them.
I read a lot of Poe's shit when I was a kid, and as a result, I've always been a bit terrified of being buried alive, though I guess/hope it's not as much of an issues these days. So no coffins for me, I have that very clearly written and verified by witnesses.
mike