A few years back, Dominic Wilcox was inspired by a bag of tiny polystyrene balls stashed under his desk. One day, just for fun, he put a lightbulb inside the bag, which ultimately became the impetus for his pendant light 'Nimbus'.
Nimbus is actually a mixture of polystyrene balls and various glues and/or resins. Dominic added an interior light source, noticing that it 'passed through the balls in a similar way to light passing through a cloud.' Gorgeous.