Last-minute techy Halloween costumes

What happens when you combine a smartphone app, a clever t-shirt, and a former NASA engineer? A really cool and kind of freaky Halloween costume called Digital Dudz. First you buy a t-shirt from Morphsuits.com. Then you download the free iPhone and Android app Digital Dudz. From the app you can choose from a video of eyeballs, beating hearts, guts, worms, you name it, all to animate the graphic on the t-shirt. You see each shirt has a hidden pocket inside to secure your phone. A little tech, a little gore, and you've got a perfect last minute costume to impress fellow trick or treaters. If you're really stuck in need of a last minute Halloween costume, download the $1.99 Masketeer app onto your iPad. Each of the 12 scary masks makes a scream, says trick or treat, and even says thank you. Hey, who said gruesome and polite are mutually exclusive. Hold the iPad up to your face and presto. Instant costume. Have a happy Halloween. Just remember to charge your phone or tablet's batteries. In San Francisco, I'm Kara Tsuboi CNET.com for CBS News.