Create a 3D rendered collection of home accessories in Japandi style, focusing on minimalism, modernity, and functionality. Focus on small, elegant decoration items made of concrete such as candle holders, coasters, and small flower pots, presented in high-quality 3D renderings. Emphasize natural tones and textures to create a harmonious atmosphere. The designs should be trendy, saleable, and ideal for modern living spaces. --s 250