With over 40 colors and effects, each Thinking Putty has its own unique properties and characteristics. All Crazy Aaron's Thinking Putty bounces, pops, stretches, and tears.

Transform your Thinking Putty® with just the heat of your hands! The Hypercolor® Collection uses thermochromic technology to temporarily change your Thinking Putty’s color when it is exposed to heat. This heat sensitive putty is ideal for twisting and turning to your every whim.

Each Crazy Aaron's Thinking Putty® comes with its own special effects and tricks that make it unique in the putty universe. We like to think of it as their putty personality. One of these effects is memory. What is Memory Effect? Basically it's any putty that seems to have a life of its own, moving and dancing its way back to the original shape in a blink of the eye.