Vietnamese Water Puppets
I could've sworn I first heard about this form of puppetry from Andrew at www.puppetvision.blogspot.com, but I can't seem to find the post. I was incredulous, but intrigued. The puppeteers stand behind a screen, and perform the puppets with rods that extend under the screen, under water. I did a Google search back then (a couple years ago? Maybe three?) and didn't turn up much data.
Today on YouTube I find this:
Very beautiful. I'm surprised at how articulate the puppets are!