As the 2010 MOC-Athalon rages on (in seeming defiance of the 2010 Winter Olympics!) some interesting builds are surfacing, but I particularly enjoyed this one called "Lightmare" by Alex Fojtik from team Praeclari Miles. (..."the noble warriors"? My Latin is a little rusty. Either that or the Jesuits beat it all out of me!).
Apart from the lovely bodywork and action Alex managed to create at this scale, I loved the peculiar back story he invented to explain the habits of this bizarre alien species, part of which involves racing around their homeworld chasing the sunset, and restoring their energy on mushrooms - presumably the same variety that inspired this!