A way to survive without the head (kinda)

[Souricelle]

The jar could have limited visibility and hearing range (like it is nearsighted or something) via an attached camera, and could be rigged up to remotely pilot a cyborg or a human body with a robobrain, or even simple bots like buttbots and amusing ducks. The only downside would be that you'd lose connection if your brain and body didn't both have radio signal at the time.

Or, if you want to get really terrifying, make it use the wifi/computer stuff. Imagine staffies hacking your body and making you bring them donuts.