There’s a good chance you’ve (1) already worked with magnets and (2) made slime many times. It’s a good bet you haven’t done it at the same time, however. To remedy that, here’s a way to make Magnetic Slime. You’ll likely be very “attracted” to this new kind of slime and enjoy using a super-strong neodymium magnet to form a miniature Devil’s Tower (Devil’s Tower, WY, USA) in the polymer. Check the Additional Information section to see how this slime models a cancer fighter. It’s chemistry, physics, biology, and geology all in one!