Sandy Stevenson, who has organized and guided small group tours of Scotland for twelve years now, has been posting Scottish photographs on-line, both contemporary and historical ones. He's on Twitter - as tourscotland - and he has several blogs, including the Tour Scotland Photographs blog.
This morning he posted his own great photograph of a gravestone at Abdie Kirkyard in North Fife, Scotland which shows old agricultural tools. He has many other graveyard and kirk photographs.
Have a look at this Abdie Kirkyard gravestone here. If you click on the photo, you will see it full screen.
Sandy's other blogs include Genealogy Tours of Scotland.
In an earlier post, Tombstone Tuesday - Auld Burial Ground, Galashiels, Scotland, 2004... I referred to the 1896 book, In Search Of Gravestones Old And Curious, by W.T. [William Thomas] Vincent which has a few other examples of 'agricultural' gravestones. A copy of this with illustrations is available at Project Gutenberg. See my post above for a direct link.
And see GENUKI for genealogical resources for Abdie in Fife, Scotland.