The TwistTogether Lamp is a revolutionary mood light with a personal design touch:with a small interaction you can design the configuration for many possible sets.
The modular lighting object is made of individual blocks. By connecting them together you can set your own lightning by a simple twist.
It is energy efficient too – LEDs provide a safe, low-voltage and long lasting light source while consuming less power than a standard night light.
105$ for 4 piece via http://www.glide-inc.com/order.html