Here is a really cool Robotic Snake, made in Japan of course. It can slither and it can swim in water.
There where a lot of comments here on potential Military applications, but why do people want to kill more people? I think we have a wide array of existing weapons, we don't need new ones engineered.
I can think of more practical uses, like catching mice and cockroaches, finding your lost car keys, fetching stuff across the room and scaring the living daylights out of your friends when you get it to crawl up their leg.
PS just like Erzulie
One (Shelter from the Storm Benefit)