Link to the video: http://www.flickr.com/photos/maegnus/5304743536/
Link to the flickr set: http://www.flickr.com/photos/maegnus/sets/72157625576543269/with/5306515433/
Funny story behind this build:
I whipped up a similar looking trap over the course of 3 days last winter. It rolled and had the same functioning lights, but when I showed it to my family, the first thing they said was “what, the doors don’t open?”
So I immediately scrapped that version and began the long and tedious process of finding a way to make the doors open and close (I am not mechanically minded in the least). 3 months later and this is what I came up with. While I might some day find a way to attach it to a wire/pedal like the movie, I kind of like this wireless alternative. I can roll it across a room and make it go with a LEGO Power Functions remote. The clear tiles on the back are to let the IR beam hit the receiver.
I used some plans from this site for reference, though I’m sure you die hards will notice that it isn’t 100% accurate.
Don’t look directly into the trap: http://www.flickr.com/photos/maegnus/5306515433/in/photostream/