Crazy Aaron's Thinking Putty Mini Tin Complete Bundle Gift Set - 8 Pack

Hypercolor Thinking Putty is thermochromic -- just a touch from your hands or a warm coffee mug will reveal a new "hot" color. Allow it to cool off or stick it in the fridge! Then the "cool" color will be restored. Super Illusions Thinking Putty colors unlike any we have ever made before! Crazy Aaron worked for years in his basement lab to come up with these mystifying colors. These truly original colors will blow you away and keep you playing for HOURS! And, while room lights are great, sunlight makes these colors really EXPLODE! Glow in the Dark Thinking Putty is hypnotic and irresistible! Milky white in daylight, their glow magically appears when the lights dim.