When visiting the big theme parks of Disney, Warner and Universal the special light effects always were very impressive. Disneys "Space Mountain" is a famous example for the use of fibre optic lights. They used a lot of this fiber optics there, e. g. for a moving comet tail or a starry sky.
Because of my work for a special purpose machinery manufacturing company once we had a lot of fiber optic
leftovers that were used for optical sensors. This was the initiation to build my own starry sky.