"This is art. You will hear a buzzer. When you hear the buzzer, stare at the art. [BEEP]" – Announcer voice in Portal 2
I made this in Repin Palettes, an app made for the iPhone/iPad. It allows you to choose your own RGB colors and color pixel by pixel. You can scale the image up or down by a factor of 2 or 3 (scales up by 3, not down). This allows for more intuitive creation (a la http://image.slidesharecdn.com/agilledelivery-dealingwithsoftware-v14-120224175550-phpapp02/95/dealing-with-software-by-being-softaware-23-728.jpg?cb=1330106508) (Thanks to Portal Wiki for reminding me of that Portal quote: http://theportalwiki.com/wiki/Announcer_voice_lines)
