Had tons of "reels" - these came with all kinds of images, from tv shows, travel catalogues, etc. The cool bit was they featured 3D imaging, even the cartoons! Scooby-Doo, Mickey Mouse, etc. were 3D - not like CGI imaging in today's cartoon movies but 'layered' such that the background (walls, chairs, etc) appeared to be further back from the foreground characters, even though they were all still 'flat'. The oddest thing though about these was that a person with glasses still has to wear glasses when viewing the images, or they are blurry - even though the images are about an inch away from one's eyes...!