The maker revolution has grown by leaps and bounds during the past four years. With dozens of robotic toys for learning and discovery now in the marketplace, it makes sense to give students opportunities for interfacing these robots with the investigative powers of PocketLab Voyager. This lesson describes an example project by which students interface Voyager with Modular Robotics Cubelets—robot blocks that magnetically connect to form an endless variety of robots. There are seventeen different blocks in three categories—sense, think, and act. Just like PocketLab, Cubelets are in use in thousands of schools throughout the United States and also internationally, with lesson plans available from pre-K through 12th grade. Also, as with PocketLab, Cubelets are used not only in the classroom but also in Maker spaces an innovation labs.