Crazy Aaron's Thinking Putty - 4 Heat Sensitive Hypercolor 2" Putty Tins Made in the USA! Amethyst Blush - soothing, with a touch of warmth purple fades to reveal a pink blush! Chameleon - lush, green explodes into a bright flurescent yellow with a touch of heat! Twilight - A deep purple that disappears with a touch of heat to reveal a blue complexion. Sunburst - Vibrant orange shifts into an awakening yellow with the touch of your warm hand!