When I was about five, I invented digital photography. I had a box which I would pretend was a camera connected via a piece of cord to my blackboard which was my pretend huge TV screen.
I used to take a picture of something then go and draw it on the board with chalk then tell anyone who would listen that it was my instant photography system.
Obviously I was just playing, but in my mind, this was an electronic system (I was interested in electronics then too as my grandfather had already taught me how valves (tubes) work).
Dear Kodak, please send me my share of the royalties!