Glass Colour-Changing Light Aromatherapy Diffuser Not only does this Glass Colour-Changing Light Aromatherapy Diffuser (£24) mist essential oils into the air for soothing scent, the dome also lights up in a firework-like pattern for added effect. Image Source: amazon.co.uk Glass Colour-Changing Light Aromatherapy Diffuser £24 from amazon.co.uk Buy Now