Here is another 3D pen that lets you bring your design ideas to life. The Scribbler DUO is a dual-nozzle pen with adjustable speed and temperature. It is pretty easy to use. Simply plug in the device, hit the feed button, provide filament, and you are ready to go. Filaments are extruded from the nozzles once heated.
The DUO lets you make sophisticated models in minutes. Expected to ship in August.