Opalhouse 300ml Cutout Ceramic Colour-Changing Oil Diffuser White This Opalhouse 300ml Cutout Ceramic Colour-Changing Oil Diffuser White ($28) still looks so pretty sitting out even when it's not in use, and it also comes in an Opalhouse 300ml Cutout Ceramic Colour-Changing Oil Diffuser Aqua ($28) version. Image Source: target.com Opalhouse 300ml Cutout Ceramic Colour-Changing Oil Diffuser White $28 from target.com Buy Now Opalhouse 300ml Cutout Ceramic Colour-Changing Oil Diffuser Aqua $28 from target.com Buy Now