In the past few years, we have covered plenty of cool flat plasma displays (Luminglas) here. This Wearable Pocket Plasma is also worth a look. It is a wearable flat plasma light that reacts to your touch and sound. It is made in a wide variety of cool colors. You can power these with a standard battery.
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Wearable Pocket Plasma (Luminglas) -- Gadgetify
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