Falling somewhere from a division of ASUS, PEGA has created this inflatable lamp concept which uses a pump to increase the size of the light.
It's called 'Pumplight,' aptly nough, and the more you pump it, the larger the balloon, and the brighter the light. Opening the air valve lets the air out, and turns the light off. Simple, effective and fun. [PEGA Design via DesignBoom]