If you can blow £3,000 ($5,100) on a first-class ticket, you're probably reasonably contented at how your life turned out. British Airways wanted to be sure you were enjoying your time in the air, so paired an EEG headset with a fiber-optic cloth to create the Happiness Blanket. The attention-grabbing project senses your mental state and changes color depending on your mood -- showing red for annoyance and blue for contentment. Unsurprisingly, the "research" proved that a full-size bed, fresh food and unlimited champagne is enough to keep you happy on an eight-hour flight. Now imagine what the blankets would have been like if they'd tested this out in cattle class when someone's elbow is trying to make a nest in your ribcage.