What if something you wore could improve your health?
That was the idea behind UNICEF's Wearables for Good Challenge, which called out to the world of "makers, engineers, do-gooders, executives, computer scientists, inventors, innovators."
The contest drew 250 submissions from 46 countries across 6 continents. The entrants didn't have to actually make the device – sketches would be accepted. Although some wearables were indeed three-dimensional.