Since I don't know anything about computers, that would probably be harder That being said, I am fascinated by all the open source tech out there and the cameras people are building with it. Like, I'd love to know how to build this camera so I don't have to wait for them to build it: http://www.ch00ftech.com/printsnap/
You could always get the gameboy camera and printer...
while we're at receipt-cameras... I give you, the holy grail of psuedo-digital toy cameras