I used hi-rezdesigns zombie containment dvd to make this prop. I wanted to create a prop where it appears that the zombie is about to break out. The pneumatics are triggered by encoding in the dvd. The box is bolted together so it can easily be disassembled for storage purposes. I might grime it up a bit and add a beacon light on the top which would also be triggered by the dvd. The box was painted with metalic beaten metal rustoleum - you can't tell in the video but it really does look like beated metal. In real life the sound track is much louder. Overall I like it, it is a loud prop so I'm not sure where I will place it for my annual party.
http://www.youtube.com/watch?v=d1lpe9jknQE&feature=plcp
http://www.youtube.com/watch?v=d1lpe9jknQE&feature=plcp