Scourge and Halloween71, thanks for the compliments (H71, sorry, wasn't trying to hijack your thread!). Mr Chicken, no, unfortunately I don't have any detailed pictures of the mechanism (didn't think anyone would be interest in a 2 axis setup!) but I can try to find the how-to's I used as source material if you are interested. Thanks again for the compliments! Now, H71, the trigger really depends on what exactly you are trying to trigger, skull motion, sound track or all the above. I use an X10 set up and trigger everything manually, saves playing THAT song in front of a bunch of 7 year-olds (don't need lawsuits from angry parents), besides, I prefer full control on my props, saves having them beat to death by kids repeatedly triggering the device.