Pretty much anything pop culture rendered in lego's get a lot of web attention. It's not original anymore. Why not reinterpret culture out of something difficult bird feathers or fingernail clippings? That said I'm a sucker for Tron Lightcycles-anything. Dig this flickr set of Lego-Lightcycle images.
Check this post from last year for some homeade stop-motion Lightcycle action.