I read the Evil Mad Scientist Labs project "A pumpkin that sleeps like a Mac". This inspired me to build up an LED project to light my jack-o-lantern. Their project uses an ATtiny2313 and I didn't have time to order parts. But I did have some TI MSP430 LaunchPad boards that I hadn't even opened yet.
So I installed an IDE and ported the code from AVR to MSP430.