Unfortunately the Willis & Crumble clip from the "Angy Dad" episode of the Simpsons has expired on Hulu. I will try to track down another copy of the clip to post.
However in the meantime I did manage to find a blog posting that contained clips of each one of the animated parodies contained within the episode.
Check it out!
In case you missed it, here is a clip of the Simpsons episode that I worked on. It's a parody of Aardman Animations lovable characters Wallace & Gromit. The clip includes guest voice work from Halle Berry, and W & G creator Nick Park.