Mystic Crystal | MINI 4.5 out of 5 stars. Crystals are formed into all sorts of unique shapes when a liquid becomes a solid. Some crystals have metaphysical properties that can promote peace, abundance, and more! This beautiful ice blue putty has pyramid shaped glitter powerful for manifesting your desires. Thinking Putty® helps build hand and finger strength through a fabulous tactile play experience with unique, unexpected properties and provides relaxing, yet stimulating interaction for anyone with sensory integration issues. Thinking Putty® is non-toxic, won’t dry out, and won’t leave a sticky or slippery residue on your fingers, so it’s great for stretching, molding, bouncing, tearing, popping and playing by kids and adults alike.