http://vimeo.com/34310857 By Mario Spuler, rendered with Cycles.

http://www.youtube.com/watch?v=AIeUGP1bD04 Done in Blender and After Effects +

http://vimeo.com/34288614 A teaser animation rendered in Cycles by No-Triangle.

http://www.youtube.com/watch?v=o2M-qpFczDE A series of 'test scenes' by Tom Walks. (I know, it's just not fair).

http://www.youtube.com/watch?feature=player_embedded&v=uuI2Gfh_9CM Chris Folea posted this cute animation, along with a 30 minute breakdown of the…

http://www.youtube.com/watch?v=yPdguhMasiQ

http://www.youtube.com/watch?feature=player_embedded&v=UNP14JHYPKA An awesome monster by abc123.