Thinking Putty is great for children and adults. Terrific for keeping hands busy, plus offers a great option for stress relief and relaxation. Thinking Putty can be shaped, kneaded, stretched, bounced and much more. Extra soft and pliable. Strange Attractor Thinking Putty has a mind of its own. A deep, mysterious black with subtle green sparkles, it comes alive when charged with the included magnet. 3.2 oz. tin.