Your post inspired me to do some research on options for blocking these sites and I stumbled upon the uBlacklist browser add-on. It's open source, easily configurable, supports multiple search engines, and you can even use community block-lists instead of building your own.
I did find it strange that in most of the footage the pipes seemed to be tightly sealed with screws, adhesive, and in some cases what looked to be foam. It makes me wonder if there was some sort of vacuum required for this demo.
I was slightly disappointed that you didn't go cross-eyed when I moved the mouse between your eyes.