The web site to make your own gravestone image is here. Dick posted a Tiny URL for the site as http://tinyurl.com/2ynvop.
I gave this a try - and came up with one based on an old tagline:
And one for my own gravestone:
It is difficult to create short lines with only 15-20 letters in the top two lines, and 20-25 letters in the third line. I imagine that this was conceived such that a person would put a name on the first line, dates on the second line, and a pithy comment on the third line.
There are all sorts of things you could put on something like this and publicize - think about politics, sports, literature, etc.
What can you come up with? If you have a good one, submit it to Dick's post. Or create your own post. Have fun!