Fickle foam

This long-time favorite sensory fidget is a 4" plastic-coated, square foam pad with enclosed liquid crystals that "light up" and change colors when you hold, rub, or squeeze it!  Fickle Foam makes a great silent classroom fidget tool, quiet travel toy, or it makes an entertaining fiddle for waiting rooms and restaurants.  You'll love how soothing and focusing fickle foam is!  Neat!