Instead of the "cute" monster test done previously ( http://youtube.com/watch?v=fOMJ4kii2bc ), I redesigned the character to more closely match the "classic" illustration by Hugh MacLeod ( www.gapingvoid.com/Moveable_Type/archives/cat_microsoft_blue_monster_series.html ). Rigging was even simpler, though the mouth gave me no end of grief; either the teeth showed through when he bent around with the mouth closed, or they were distorted when he bent around and the mouth was open. The final video is a combination of models, mixing both "naturally closed" and "naturally opened" character designs.
The sketchy lines are an effect done entirely inside the Lightwave renderer, using animated displacements, edge effects, and tuned anti-aliasing.
The animation of the apple and leaf being spit out were originally handled via physics simulations... in the end, the core was keyframed by hand on top of the simulation to give more control over the feel and the poses, and the leaf was animated free form since in the simulation it was difficult to control the amount of spitting vs. floating.
The final Lightwave renders were composited in After Effects, adding subtle grays to the backdrop, mixing in shadows, paper textures and distortions, and the title animations (lettering taken directly from the Hugh MacLeod artwork). Audio was recorded and mixed in GarageBand. And yeah, the monster's voice is me... :D