For the past 5 years our team has been developing plastic films incorporating polymer nanoparticles that when correctly processed show structural colour. Most coloured materials depend on pigments that selectively absorb particular colours, and these are frequently toxic and fade over time. Creating colours that can change on demand is currently impractical for most markets. The materials that we create produce colours based exclusively on the nanoscale spacing of transparent components, and actively change colour if stretched or swelled. The prospect is thus for a materials-based company selling suitably-tailored coloured films into a variety of markets.Our aim is thus to formulate and develop the business case for a spin-out company based on elastomeric polymer opals which use our novel manufacturable nanotechnology.