Attach my corpse to some powerful fireworks, shoot them up thus making my body explode into pieces (even better if dust happens).

Because the chance that it will help some asshole who doesn't deserve to live is at about 99%. Not gonna take that risk.

I'm just going to assume that you're being sarcastic.

i wanna be pushed out to sea on a wooden raft, before an archer with a flaming arrow shoots at it, setting it alight

preferably at sunset, because that would look cool as fuck. and seeing as i am not cool alive, i think i at least deserve to be cool in death

You're right. The chance is of course a bit lower than that. Still too high though.

I said sarcastic, not hyperbolic.

Yes especially the brain that would be a good organ to be donated to live on in another body.

Well, it'd certainly be interesting to try it out!

I want my best friend to chop me to pieces and feed my parts to Siberian tigers.

I don't care, whatever is cheaper.