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. The natural color of amethyst ranges from a light violet pink to a deep reddish purple. Experience every hue with Amethyst Blush Thinking Putty. It starts out as a lovely dark lavender and becomes pretty in pink with just the heat of your hands. 3.2 oz. tin.