There was a book with excellent aerial photos of crop circles which made a good Christmas present a few years ago. As far as I remember, it did NOT promote any non-human designers or makers.
"The fact that people can fake [crop circles] doesn't mean that there aren't real ones. It's in my gray basket."
This year's Peter Sorenson crop circle however was commissioned by Scott Flansburg, who is in the Guinness book of world records as the fastest human calculator and can be seen here: http://cropcircleconnector.com/Sorensen/2006/magicnumbers2006.html
It has to be noted that most of the photographs released for this formation are heavily 'photoshopped' as some rows of numbers were not 'stomped' due to a tramlinee running through the centre of the formation.
Although no one does regular demonstrations of crop circle making, the guys at circlemakers.org (including John Lundberg) get involved at least once a year with TV production companies (Nat Geo, BBC etc) to demonstrate their art. These 'demonstrations' are not accepted by those who follow the 'Church of the Blind Faith' and preach from the Gospel according to Glickman however and no amount of evidence will ever sway them from their un-ending belief in the ridiculous.
When Simmie and I were there the day after completing it we encountered a group of Germans who politely challenged us that no one could not have made such a complex crop circle. After much discussion someone who had videoed us working on the numbers from up on Woodborough Hill came forward and showed them his shots. Although filmed from far away, one could plainly see Ripley flattening the numbers. But the German who could speak English best then shook his head in frustration and told me that he was inclined to believe that that the video was computer animation (!).
[Those who know me well will appreciate the irony!!!]
Their ignorance knows no bounds![]()
Beta Centauri (the closest star to our mudball)