Ok - what about this then - http://www.cropcircleconnector.com/2005/Waylands/waylands2005a.html . Clearly it is the work of an alien culture as it shows inter-molecular propulsion systems in great detail. Any fool can see that what is portrayed in this 'diagram' is nothing other than the Warp Drive from the Starship Enterprise.

The crop circles are made by 'light balls' of what-seems-to-be microwave energy. Although a few light balls have been captured on video this film - http://www-fi3.starwreck.com/ - best shows them in ac tion.

My pots turned out - a beautiful moonset this morning, with Mars. Better get back to it !