This might have already been thought of, but has anyone looked into what it would take to completely cover a case in an LED matrix like similar (but smaller in size) to the ones used for those massive LED TV screens in stadiums (and Times Square)?
I'm guessing you'd have to have some sort of separate power supply to power them all and something to deal with the heat buildup on and around the case from the resistors heating up, but I'd think that you would be able to pipe a monitor input into it and make your case whatever color you liked, or watch a movie even while walking around the case.
I don't even know if they have any LED matix that small though. Most I have seen would look like a bunch of boxes containing LEDs stacked together and would probably be too blurry to put anything recognizable on it other than one or two colors.
Just a thought...any other ideas?
-- Jabyaeye