Adafruit Mini 8x8 LED Matrix w/I2C Backpack - Green ID: 872 - $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits 

Adafruit Mini 8x8 LED Matrix w/I2C Backpack - Green ID: 872 - $9.95 : Adafruit Industries, Unique & fun DIY electronics and kitsĀ