Brilliant!
I am also one who would not have a gravestone - the mere idea of being buried is kind of anathema to me. But if I must, I’d either have some sort of pithy, short saying, or something like “Here Lies a Proud Nerd.”
I’m thinking “hello, I must be going” would be appropriate. 
No, just can’t figure out what an Alt-stone is.
No burial for me, but if I was, I’d like:
“You should see the other guy!”
I want “We purchased this stone to honor him after death, but he’s still alive, year after year, and having a great time, so we finally just stuck it here for the irony.”
SPOILER ALERT
In the end, I died.
“Not again!”
When I lived in NYC, I was convinced I was going to get hit by a bus or cab at some point. I wanted to give the tourists a little comedy during the accident/death. So I practiced and practiced saying “Not again!” everytime I tripped or dropped something in order to hone my reflexes to use it instead of profanity, etc. I was eventually asked by everyone to knock it off as it wasn’t funny any more. Similarly, it works fantastically on the headstone. But I think a comedy headstone memorial would get old quickly.
“When there’s no more room in Hell
The Dead will walk the Earth”
I’m loving this–some are hilarious. (I don’t get the horse one. :-()
OK. Most of us don’t want to be buried and so on. But I’m not talking graves I’m just talking stones.
I remembered two stories last night:
SOmewhere sometime I read that Thurgood Marshall wanted his to say–“I did the best with what I had to work with.” Then an old dear friend, now dead, was a labor arbitrator–he said he wanted his to go something like this:
A lifetime of argument
has left me in this plight.
(But) suppose, just suppose
the other guy was right.
As for me, while what I learned about my life was that I should’ve whined more, I’m liking “Get off my lawn” more.
Remember there are 3 choices in order of preference. 
Maybe we’ll hold a vote as well.
Oh and Nemo–you have me tearing up here. SNiffle.
How’s about:
main()
{
printf("goodbye, world
");
}
Husband and I want the following:
His: (Name) (dates) “REPENT!”
Mine: (Name) (dates) Unrepentant
Note: He plays a Puritan at the Renaissance Faire.
I want a command-option-escape (Mac) stone.
I guess an atheist would have ALT-F4…
Personally, I’m fine with having my organs harvested and my carcass dropped in a ditch somewhere, but the real answer is “whatever my family wants”, since the gravestone/site is for them, not me. I certainly won’t give a shit (except maybe a small turd expelled by fermentation gases).
Hilarious. As usual I’d have to take my own death way too seriously. It would say, “What is to give light must endure burning.”. Pretty much my life philosophy.
Since 1986 I have told my family that what will go on my headstone is “I am NOT a piece of playground equipment!” I thought they had forgotten all about that, but recently, both my kids, now parents themselves, have mentioned it to me.
I make fun of a lot of things, but I’ve always felt that a gravestone should be a serious thing. Ideally, a final expression of conviction, of one’s innermost faith. In many ways, the choice of what you put on your gravestone is your very last chance to make things right with your God.
Accordingly, I’d have to go with “Ia! Ia! Cthulhu ftaghn!”
Napier
1957 - 2273
But I feel it really is a different concept. An actual gravestone marks the spot where your body lies - your mortality gives the epitaph its strength. Because you can have only one true gravestone, what’s written on it can serve as a reflection on your entire existence.
But an “alt-stone”? That just shows you had a couple hundred bucks you felt like spending. Like Dr Drake said, it’s a bumper sticker carved on a rock.
Your kids, in their early years of parenting, have surely been reminded of it by the actions of their kids.
I’ll miss it when the Firebug’s too big to use me as a piece of playground equipment. 