ISS Globe

http://sciencehackday.org/project/iss-globe/:

"...the ISS Globe continuously shows you where the ISS is overhead. The team of sciencehackers used a translucent globe, two hobby servos, a MakerBot for 3D printing a few gears, a Teensy microcontroller and a laser that was mounted inside of the globe. Firmware controlled interaction between a laptop and the servos and a Python client controlled interaction between the microcontroller and the servos. The end product was a globe with a glowing red dot that would show you where the ISS currently was throughout the day."