just get pretty high and head out to the movies and watch fast and furious tokyo drift.
Saw it while tripping on LSA, still a crappy movie, but it was intense as shit at the time.

you gotta think outside of the box man....just roll the joints before you go up there if your willing to sneak pot onto a goverment controlled and owned space shuttle, you might as well roll the joints before you leave to make it easier , come to think about it the sneaking of the pot onboard would probably be easy because its not like they pat down the astronauts before they go, the sneaky part would be finding out how to smoke it without getting caught.
Wouldn't be surprised if those astronauts actually toke up all the time in space, and NASA has just kept it under wraps the whole time.