The LED Art Fan goes beyond showing the temperature or absurd color patterns, letting you store up to 128 colorful frames in its built-in 5MB memory. The only thing that stops me from satisfying my tacky Blade Runnerish decoration instincts is the strange way to load the animations.
Inexplicably it requires the use of a serial port to connect the included IR transmitter, which you need to send the files to the fan. On top of that, it requires a PC with Windows 98, 2000 or XP to work. Why not use a simple USB port to load the frames in a folder is beyond me, but this means that I'm definitely not sending $349.99 to Think Geek for it.
LED Art Fan [Think Geek]