Becky Stern of Make Online says:
It's here, folks, the biggest DIY Halloween contest there is! This year's contest is sponsored by Microchip, and together we've got rad prizes to give to the best in microcontroller Halloween projects. Light up costumes, creepy decorations, candy-launching robots, we just can't get enough of Halloween; it's our all-time favorite holiday.
Above: a cute Mechamo Crab hack.