Third option: shotgun up the asshole (or pussy if you're of the internal gonad persuasion) if you can rig up some remote trigger. Or for heightened suspense and reduced ability to back out, a flintlock pistol with a slow burning gunpowder fuse running into the breach instead of the normal hammer-and-splint setup.

Dynamite if you want to be really hardcore, one up the ass (and/or cooch), another deepthroated. Doing a naked swan dive off the top of a high building a few seconds before the fuse runs out and the sticks explode. Set up a few dashcams around the site with decent memory cards in non-overwrite mode (or just running off batteries good for distinctly less time than the maximum rec time) at various angles to cover all possibilities of detonation time, including that of ground splatter followed by bang. Text, facebook, twitter, GC mass messages with the camera locations in sent just before the big moment. Hashtag ludicrous gibs.

Obtaining the materials is left as an exercise for the reader, I don't fancy being arrested.