Analisa Russo is a PhD candidate in Materials Science and Engineering at the University of Illinois at Urbana-Champaign. She invented Circuit Scribe, a rollerball pen filled with conductive silver ink for sketching circuits on paper. The Circuit Scribe kit consists of the pen and magnetic components, including LEDs, switches, and sensors that snap onto the drawn circuit when working on a steel-topped table or other magnetic surface. The system is an inexpensive and intuitive way to turn traditional circuit diagrams into real functioning circuits. The pen and components have applications in STEM education, electronic art, and circuit prototyping.