Here's a cool 8x8 LED Matrix Display designed specifically for a WeMos D1 Mini!
Now available from Solarbotics is this great LED matrix shield for your WeMod D1 Mini ESP8266 development board. Have fun and create useful displays, images, scrolling text and more with this compact red LED matrix. Easy to use as an Arduino library is supplied (link below). Header pins are included but not soldered to the shield. Shield uses the Titan Micro TM1640 LED driver IC.
Arduino IDE Example: