This Designer Emulation Kit turns an ordinary 9V battery into a fashionable desk lamp that won't light up the entire room, but adding a soft, warm glow to your desk instead. The pieces slide in together and are attached to a battery, and you have several kits to choose from according to your personal preference. Take for example, the DEK 5 that comes with its own lamp shade, creating a diffused light when combined with a 9V battery. Each Designer Emulation Kit will cost you $29.99.
Source: Chip Chick