Unlock a spectrum of sensory science with Crazy Aaron's Rainbow Reveal Thinking Putty, a shape-shifting compound that reacts to heat, light, and darkness to reveal a cascade of hidden colors. As your hands warm it, photons and temperature-sensitive pigments collaborate in a dazzling transformation, then shift again under sunlight and glow mysteriously in the dark. Stretch, bounce, and sculpt this ever-changing material for a tactile experiment that’s equal parts chemistry and play.
