Green fire, magic mirrors, fiber optic fairy wings—just a few of the ways to geek out this Halloween with do-it-yourself projects
. Eric Wilhelm, founder of Instructables
, joins Ira to suggest a few of his favorites, like an arduino-powered skull that follows you as you move, or truly realistic edible eyeballs (sorry, peeled grapes.) Let us know about your DIY ideas @scifri or at 844-SCI-TALK.