As fidget spinner craze goes global, its inventor struggles to make ends meet | Toys | The Guardian
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How the Fidget Spinner Origin Story Spun Out of Control - Bloomberg
Yogi Fidget Toy, Adult Fidget Spinners, Stress Reducer, Perfect for ADHD, ADD, Anxiety, and Autism, for Kids and Adults, Finger Fidget Spinner with Five Ring Sizes, Easy to use Toys - 2 Pack
Original Fidget Spinner - Catherine Hettinger (1993 design) - YouTube