Code to make Dr. Strange's gloves light up... ugh, I mean, cast spells.
Check out the full build at http://www.instructables.com/id/Dr-Strange-Costume/.
This project uses libraries contributed by tdicola (https://github.com/adafruit/TinyWireM) and evilmachina (https://github.com/evilmachina/TinyLSM303) to help conserve precious sketch space on the Gemma.