I saw this http://bergcloud.com/case-studies/pixel-trackand thought I had to have my own low-tech pixel display.My version uses even less electricity as you have to switch the pixels by hand.It prints in one piece, start with one colour for the first 3 or 4 layers and then switch to the other colour for the rest of the print.I takes about 4 minutes per pixel, so this one takes about 4 hours to print.Let me know if you'd like one with more or less pixels and I'll upload it!