Motion Blur
I may have another go at this one because I'm not 100% happy with it, but it'll do for now
http://www.flickr.com/photos/southdownspics/8729044136/
May Motion Blur.jpg by MarkBerry1963, on Flickr
Motion Blur Two
This is more for fun than anything, but this was moving so fast I couldn't have avoided the motion blur if I'd wanted to!
http://www.flickr.com/photos/southdownspics/8747549133/
May Motion Blur 2.jpg by MarkBerry1963, on Flickr