
High-tech Halloween: iWound —
A smartphone or tablet, some seriously spooky animation and a convincing fleshy case make for a realistic fake wound. Mark Rober quit his job at NASA to make these cool digital-effect apps and accessories for Halloween costumes.

Karaoke machine —
If you're going to be a gadget, be a fun one. A YouTube user named lukasodhner dressed up as a fully functional, battery-operated karaoke machine. He had a songbook, speakers, lyrics and a friend dressed like Elvis Presley.

Bright lights —
LED lights and electroluminescent, or EL, wire are classic costume ingredients. Beyond "Tron" costumes, they can be used to make an RGB stickman, right, or more elaborate, full-body light-up disguises.

Robot basics —
No technology is necessary to create a classic robot costume, just some duct tape and cardboard. But these outfits get better when you add blinky lights, tablets for interactive displays, sounds and anything else you can dig up. Start with this basic bot from Make Magazine.

Magical chest wound —
Before he was making moving eyeball and sucking chest wound apps, Mark Rober got started with the classic see-through tablet trick. Using two tablets running the FaceTime video chatting app, he created the illusion of a hole through the center of his body.

Sound effects —
Blood and gore cover the visual aspects of a costume, but what about the other senses? The MegaStomp tool available on ThinkGeek adds sound effects to Halloween costumes every time you take a step.

Underwater aliens —
This costume requires some imagination, water, lighting and bubbles. It's a space costume meant for visiting aliens from a water-based planet. They need it to move around Earth and still breathe as well as look cool at parties.

Giant Facebook profile —
Tally fake "likes" in real time with this giant Facebook profile and a smartphone app.


