As someone who works as an undertaker and if I was to die tomorrow, I would like to make life as difficult as possible for the people that I work with. So, I would want dressing in an all over rubber gimp suit and hopefully during being dressed I will shit myself so that they have to clean it up. I also want to be buried at sea, because the metal coffins that they use for a sea burial have to have holes in the bottom so that they sink, I want to be left in a really warm place for about a week or so before my funeral so that there is a nice collection of bodily fluids to pour out of of the bottom of the coffin when it is being carried onto the boat making it as unpleasant as possible for whoever is involved.
Failing that, I want to be cremated...in a metal coffin.
I just want to be remembered as a huge pain in the arse.
And if anyone plays "All Things Bright and Beautiful" at my funeral, I am seriously coming back as a Necromorph and making someone pay.