And to all of those saying "Death by snu-snu", if your last words aren't "Doesn't matter, had sex" I'll be very disappointed.
OT: Okay, I want to be decapitated. But not just lame executioner axe or guillotine decapitated. I want to have my head sliced off in that special movie/video-game style where it doesn't actually fall off right away, simply rocking on my shoulders. Then I want Jack Black (and yes, it has to be Jack Black) to stamp on the ground making my head topple while he screams "DECAPITATIIIIOOOOOOOOOOOOOOOOOOOOONNNNN!"
Alternatively this, but taking it to the logical conclusion of Bruce Willis busting in and killing all of us.
Orrrr, I want to jump off a very tall building with a cheese wire noose around my neck. But I have my hand glued to the top of my head with a basket-ball hoop at the bottom, so that I can slam-dunk my own head.