Planetary Society member Gerald McKeegan sent us a picture of this 1/4 scale working model of the Curiosity Rover that his wife, Laura, built. She made it using a 3-D printer, designing parts by downloading images from various NASA websites, then measuring them to get the correct dimensions. She then designed the electronics to allow her to control the rover with a tablet via wifi. All the wheels move independently, as does the tool arm, and a camera in the mast transmits to a computer via wifi to allow people to see what the camera sees. Laura uses CJ (Curiosity Junior) for outreach at local schools, museums, and libraries.