This material looks and feels like silly putty, but is also magnetic
Super Magnetic Strange Attractor. It'll Be Like Putty In Your Hands It's called Thinking Putty because while you do whatever you want with it, your brain relaxes and opens up to all kinds of creative thinking. Need it? Yes. And you can also knead it. Or bounce it, bend it, tear it, stretch it, snap it, pop it. And it's magnetic. You get 3.2 oz. of dark green putty with iron filings infused in it, plus a 1/2\" cubed ferrite magnet.
For better results, purchase a Neodymium Magnet