This effect is extra-terrestrial and will scale down the whole universe into your photographs. 
Blue stardust will make little galaxies appear on your images. 
Play with exposure! The blue nebulas are more visible in darker parts than in brighter areas of the photo. Take pictures of your friends and make them look as if they were lost in space or showering with stardust.
35mm colour negative film,36 exposures ISO / ASA 200