Hi Tim, Hope you are having a good holiday...I am....:) Anyway, I got this catalog from some security convention that I went to which had all kinds of cameras in objects. They had them in toilet paper tubes for Airports (after seeing this I always put my jacket over the toilet paper roll in public restrooms....:) and clocks for Banks and semi-public areas. Generaly they would have a fiber optic cable run a few inches to a small vidicon type setup. There are also the ones made w/ CCD's which may or may not have a cable to them. With the b/w cameras it is possible to digitize the video and store it on audio cassettes (there was a toy camera a couple of years ago which used this technology, it is still highly prised by amateur roboticists) or even send it over a am rf link (one of the local volunteer fire depts. uses this technology for fighting brush fires). Any particular questions? Can't promise an answer...