Let's see, so many things in response to this thread...
Talking of playing DF while on a Generation Ship, and of the many jobs any resident would have to undertake (in-between joining the mission and... well, dying and letting your descendants take over, or else when not in some form of stasis if you're cheating), well, you're dangerously close to my still-not-nearly-ready-enough idea of a Generation Ship simulator that I've been desperately trying to make
not look like DF...
For environmentally-friendly sun-bound trajectories, space elevators with 'drop'-launches from the counterweight ends...
For a tomb, I want my
own Dyson Sphere, with my remains preserved so that when the Sun involved finally cools (which will probably take longer, if I'm not just re-radiating the captured energy outwards again as fast as I can, which'd make my 'home' quite visible again) the suitably automated and suitably technologically advanced machinery that will by then have been developed for this task can send my encoffined body burring/diving into the collapsed husk of the star (when brown dwarf-ish, probably, but that's bearing in mind that it depends on the star and the effects of the Dyson enclosure), there to reside for some reasonably long 'forever after'... Pyramids be damned. Four thousand years? I might get a good four thousand
million years, plus change, if not several orders of magnitude more...
Failing that, enclose me in a well reinforced coffin made Tungsten, and put me in a subduction zone...
Eventually it'll melt, but I might
just find myself floating up out of a volcano, before that. (If you can find an alloy that doesn't melt at all at 4400-degrees C/K or more (the 273.15-ish difference probably not mattering, unless on the cusp!), even better... Weight me down with Tungsten, and when it
does melt, I could pop up
anywhere...
)
Oh, and Ramscoop-like capture of interstellar elements... Even if not to be
actually used for propulsion, could perhaps provide enough matter to replenishing a fusion-based fuel-supply...