Does something like this exist?Older model ok
Get any camera, insert SD card, and superglue the door shut.
This is so simple and so brilliant!
Yes, but note my edit. It limits your camera models.(Unless the camera can charge by being plugged in directly, but then you lose the ability to use a spare or new battery.)
If you are careful, you can probably just superglue the actual SD card into the slot. No?