The 3D Pen
With the 3D pen you can build 3 dimensional creations. Simply put in a color into the pen, and hook up the pen into a battery, plug the battery into a socket in the wall. After the pen warms up the top of the pen will light up blue, and you can begin. Every once in awhile you will have to refill the pen with a color, and the pen takes 1-3 minutes to warm up.