This is a long one, but believe me, it's worth your while.
Back in the '80s, GI Joe ran on Saturday mornings. These poorly animated cartoons concluded with public service announcements about a minute long, saying things like "don't play in old refrigerators" and "stay away from live wires."
Eric Fensler, a Chicago filmmaker, remixed about two dozen of these, recutting and overdubbing to make whole new animals. Hasbro made threats and Fensler took them off his site, but the toothpaste was out of the tube.
I can't post just one. I'm tempted to post them all, but I'll leave you to investigate here. These are best watched one right after another - the cumulative effect is that much funnier.
And finally, my favorite, "I Just Wanna Ride My Motorcycle." Notice the incomplete steering wheel and the guy's mustache floating free as he says the last syllable, plus the kid whose shirt and race change from shot to shot. The monologue is transcribed in the comments section.