An animator friend recently turned me on to Axe Cop, and I'm forever grateful.
The big attraction here is that the animator's 5-year-old brother comes up with the stories, which are then faithfully brought to life by adults. The results are about as awesome as one might think:
That's right: tryouts.
I highly recommend the "Moon Warriors" material as well:
This is, in essence, what I'm talkin' about. There's a lot of this stuff, and it's pretty great. Have at it, Internet.