But they are all amusing, IMHO:

• Pirates vs. Ninjas!
  The victor is unclear, in my opinion. But I’m rooting for the pirates!
• Silent Library
  The Japanese translations make it all worthwhile.
• Exploding Head
  There are a lot of variations on this theme, but this one is pretty good.
• Star Trek Karaoke
  No really, you need to see this if you liked the original Star Trek! And there are more where this came from…
• And finally, the piece de resistance: Darth Vader: The Musical!