Or that other guy, the one with the glasses 
I wouldn’t mind having my grave look like a superhero’s.
So they have a symbol for atheists and Wiccans, but none for Scientologists? They’re losing out on a major demographic right there.
…which, as I said, plays into the whole “Atheism is a religion too” fallacy.
Maybe that swirl symbol is a metaphor for circular arguments.
Symbols.com lists a bunch of meanings (among them the meaning of ‘a good house for work’ with the British hobo community, or, listed under its inversion, that it was used by alchemists to signify ‘horse dung’) but none of them seems to be ‘circle of life’.
Your beef is with atheists, not the VA. I hope you understand that, at least. There was no symbol for atheists until they complained.
It’s pretty ironic that you’re concerned that atheism not be perceived as a religion, and yet you talk about it as if it has established doctrine.
“Thou shalt not use symbols on thy headstones.” 
While atheism isn’t a religion, it is an unfounded belief just like religions. I am a thorough-going agnostic who believes, deep down, that there is no god. So i call myself an atheist, but it is only a belief.
Would I want a symbol on my grave? Why not? How about a Darwin fish?
Is there a symbol for “Christian who’s so pissed off at the religious right that he doesn’t want a cross”? Ooh, maybe I’ll design The Left-Leaning Cross™! Watch for it on doper gravestones next year…
Or I’ll make a symbol for People Who Would Hate To Have Their Beliefs Reduced To A Symbol.
I prefer my Dopers alive, tyvm. Don’t want to see any Doper gravestones next year!
Arguably, the Disciples of Christ have dropped a left leaning cross into that wine goblet.