Here's a local one I found yesterday when I went looking:
From a family plot in Niagara Falls ON on the center of 3 graves:
"Here I lie between two of the best women in the world, my wives. But I have requested my relatives to tip me a little toward Tillie."
and just for fun from the gravestone of a spinster postmistress from a small town in North Carolina:
"Returned-Unopened"