Magnetic slime recipe (no borax powder required). Make your own magnetic slime with glue, water, baking soda, contact lens solution, and iron filings. Written instructions are available on the Science Buddies website: https://www.sciencebuddies.org/stem-activities/magnetic-slime-recipe. See this page for suggestions about how to make your own magnetic slime "robot": https://www.sciencebuddies.org/science-fair-projects/project-ideas/Robotics_p046/robotics/magnetic-slime-robot.