Here is a modular LED art kit that you can use to create custom shapes and patterns to set the mood in your favorite room. The Monster Digit Smart 3D Art Panels Kit comes with 3 panels and connects to your smartphone for easy control. You can also control these panels with Alexa and Google Assistant.
You can buy additional kits to form words or more complex shapes. This kit comes with a Digit Controller & Power Kit, 3 LED segments, and mounting accessories. You can find out more about it here.