Fidget Spinner Illusion (animated)

Behold the StarCaster, a magical galaxy-shaped fidget spinner hiding a 2nd (animated) galaxy within! Spark it to life with the magnetic Universe Key, give it a spin, and watch its inner galaxy awaken, swirling with a mesmerizing glow. No high-tech trickery. It's an optical physics illusion observable with the naked eye.Boost MeEach Boost fuels more free designs - THANK YOU!Update: You can now experience the magic of this novel type of illusion without purchasing any parts. Check out my evolution of the concept, The Infinite Diamond Glitch. It's a quick make - the only non-printed part (an LED) is fully optional.A New Invention?Let me know if you find any prior art, but as far as I can tell, the StarCaster is the first pinhole zoetrope. It combines two classic optical techniques (zoetrope animation + pinhole focus) into a miniaturized form factor. More generally it could be called a negative zoetrope since the negative space doesn't have to be round pinholes.How Does it Work