So you would like to display animations and emojis on the back of your car? This smart LED display for cars has you covered. It comes with Bluetooth and lets you display messages and graphics on it. You can interact with the device with your iOS or Android device.
You get 8 different moving modes, graphics like smiley face, heart, flags of countries, and various symbols such as heart, start, arrow, and triangle. It costs under $53.