Must have missed this - it's 2 years ago now, but a hot-air balloon trip caught this 'maze' in the shape of a Spitfire near York. The 'maze' commemorates the 70th anniversary of the Battle of Britain. Here's the aerial view:
And here's some more details:
http://www.virginballoonflights.co.uk/blog/tag/york-maze-2010/
Apologies if this is old news!
Cheers - Dai.