Aaron's Thinking Putty World Hypercolor - Epic Amethyst

Hidden deep in the heart of geodes, amethyst is one of nature’s best-kept secrets. When an exterior of dull, grey rock breaks open to reveal a pink and purple crystal masterpiece, it’s nothing short of epic. Make your own discovery with Epic Amethyst, a deep purple putty that gradually warms to bright pink before your eyes.

Colour:  Changes from deep purple to bright pink.

Materials: Non-toxic silicone

3+ years.