i just taped the regular digital cam, a older one that takes blah pictures, but ok video, on a .40 sized spad.
i presses the record button before i taped it right behind the engine (brown packing tape).
it worked fine.
i can upload it to youtube if you want, it was windy, and i had never taken a aerial photo before, so it looks like im all over the place even though i was circling.
i have even ziptied the same camera to a gws slowstick (park flyer) and that worked as well (i didnt set it in video mode (cause when its off it defaults to pic mode) before i flew it so i didnt get a video but the camera stayed on)