[Vlad]

A few years ago, I built a bungee cord operated coffin jumper of sorts, it was a last minute type thing. I wish now I had taken pics. It was rigged, so that when the lid of the coffin was fully opened, it released a catch, and the zombie sat upright. The problem is that props like these need to be reset after each scare.

 

[Vlad]

I should have mentioned that it was indeed as good of a scare as a pneumatic actuated prop.