Design your own headstone online? Yeah, that's a little morbid, but I guess if people want to do it...

You should have some pre-defined limericks to rhyme with people's names or maybe offer a limerick design based on people's names and details or something:

“I’m preparing to go meet the Lord”
Said a sickly old fellow named Ford,
“To be buried at sea
Seems the best way to me
But I don’t want to go overboard”

Just make sure you don't include any pre-defined methods of death - that might be too morbid and scare some people. :)

- Jonathan