Laugh! Because human civilization wont make it another 4 decades... come on people!

Multiple Items of Mind Expanding Material
First off let me explain something we all should know. Unless my time capsule is placed two miles under the ground surrounded by atleast three feet of cement on all sides and can survive nuclear blasts and someone can remember where the fuck it was hidden in the first place there is no way its going to make it to be 40 years old to be opened anyways. Not only that but we are speculating through this one questions that humans will survive past the year of 2016 which has been speculated to be the dawn of time, dooms day, and well the end of happiness and bad rationalizing in general BUT say we do make it or the human race dies out a a new intelligence happens apon it I would be putting alot of drugs into the capsule. Opiates, Cocaine, Pain killers, Hallucigenics, you name it, its going to be in there. By the time they get to the capsule they are going to need all the help & enlightenment they can get their greasy alien, or human, little hands on. So heres to new ideas.

Pen that works under any condition
Well obviously if they are tripping off the 8 ball they might want to have a writting instrument to keep track of some of their ideas. Not only that but I hear its pretty fascinating to look back at what you write while in such conditions.... Not that I would know anything about that.....seriously..... well kinda seriously.

Paper
Goes with the pen, explanatory.

Math/Science Books
We all know math is what makes the world go round... or is that just gravitational pull..? Regardless math is probably one of the most important, and fucking annoying, subjects that helps us to record, retain, and invent new concepts. That and science/chemisty. So, if we are in the midst of assisting a new civilization they should probably know what we built ours on even if ultimately it was those two subjects that royally screwed us over (o the irony is palpable).

Gold and Silver
Obviously the only means of having wealth will be the all time favorite of gold and silver. Throughout the ages, as sad as this is, shiny has been the emblem of ultimate wealth. Indulge my capsule friend indulge.

One fully loaded Glock
HA! 40 years from now I am probably going to be wandering the endless plains of the planet as a ghost so I say fuck it. I am going to sit over that capsule till some group of people find this little embryo of goodness, knowledge, and wealth and watch them fight it out to see who gets to keep it all just for my personal ghosty entertainment. May the smartest man win, natural selection go go !