Roland Kirk, the jazz musician, said that when he died, he wanted to be cremated so that people could smoke his ashes and get high. Inpractical, when you think about it. Ashes don't burn as they've already been burnt. Still nice thought, I suppose.

On Yeat's grave, it quotes one of his own poems:

Cast a cold eye
on life, on death.
Horseman, pass by.